Ceramic Waste Aggregate Research Articles

Impact of Calcium Aluminate Based Cement and Ceramic Waste Aggregate on the Strength Aspect of Concrete

A new race of development has been launched as quickly as possible in many countries and nations in this modern globe and era of development, but it has been noted that all of them are encountering a variety of issues in reaching their objective. Their development has been reported to be hindered by a lack of resources, and among the issues they encounter are the absence and scarcity of a variety of high-quality, environmentally friendly building materials. The lack of building materials is one of the main issues that these developing countries are dealing with. This review paper goes into great detail about the issue at hand and makes some recommendations based on a number of earlier research findings. The major materials discussed are both waste material and those with very good constructional properties.

Conceptual design and properties of ultra-high residual strength geopolymer after 1000 ℃ thermal exposure

A novel geopolymer concrete is developed, incorporating waste ceramic aggregates, with ultra-high residual strength after exposure to elevated temperatures. Different aggregate volume fractions and particle size gradations are designed, and the variations in mass loss, volume shrinkage, compressive strength, mineral composition, and microstructure of geopolymer mortar after exposure to high temperatures ranging from 20 ℃ to 1000 ℃ are investigated by testing mass loss, volume change, strength, XRD and SEM. The results show that the waste ceramic aggregates (WCA) applied in the preparation of geopolymer mortars improve the mechanical properties and high-temperature resistance. By optimizing aggregate particle size gradation, the microstructure of the geopolymer mortar becomes denser and more homogeneous, and the high-temperature resistance is further improved. The residual compressive strength at 1000 °C is 115.2 MPa, 476 % higher than that of reference. These findings demonstrate the great potential of geopolymer mortars using ceramic aggregates with optimized gradation for high temperature resistant applications.

Insights into the fracture properties of recycled ceramic and rubber composite cement-based materials: Fracture mechanics, acoustic emission, and digital image correlation

Recycling plays a pivotal role in construction waste management, offering a path toward sustainability for the industry. Although waste ceramics can compensate for the mechanical properties of rubberized cement-based materials, the smooth glaze surface of waste ceramics increases the risk of brittle failure. This study investigated the effect of ceramic waste aggregate (CWA) on the fracture properties of rubberized mortar through the three-point bending experiment. The fracture parameters were calculated using the Double-K fracture criterion. Simultaneously, acoustic emission (AE) and digital image correlation (DIC) technologies were used to explore the fracture damage mechanism and the crack evolution process. The results indicate that the integration of 15 % and 45 % CWA significantly enhances both initiation (KICini) and unstable (KICun) fracture toughness, whereas incorporating 90 % CWA leads to a 16.8 % and 8.2 % decrease in (KICini)and (KICun), respectively. The fracture energy (GF) of rubberized mortar exhibits a continuous decline as a function of increasing CWA substitution rates. Furthermore, GMM-based RA-AF analysis elucidates a positive correlation between CWA content and tensile crack proportion in specimens. When the CWA content reaches 90 %, the proportion of tensile cracks is quantified at 29.83 %, surpassing that in standard mortar. Crack tip opening displacement (CTOD) at 0.5post-Pmax for specimens with 15 %, 45 %, and 90 % CWA substitution reveal improvements of 49.1 % and 17.2 %, and a decrease of 23.3 %, respectively, compared to standard mortar, indicating that 15 % and 45 % CWA effectively preserve the ductility of rubberized mortar. Elevated CWA substitution leads to an amplified strain localization phenomenon around the crack tip, heightening the propensity for brittle failure.

Microstructure, durability and surface free energy of lightweight aggregate modification of sanitary ceramic wastes and sewage sludge

The research on the durability and physical properties of lightweight aggregate (LWA) with addition of sanitary ceramic wastes and sewage sludge was presented in the paper. The following characteristics of LWA were defined: contact angle (CA), absorptivity, roughness, surface free energy (SFE) before and after the UV radiation durability test, thermal conductivity coefficient λ, compressive strength, freezing-thawing, salt resistance and others. Open porosity was examined using computed tomography, it reached 20.987 % for the ceramic waste aggregate, and 7.023 % for the reference aggregate. The aggregate with the largest amount of ceramic waste (20 %) and sewage sludge (10 %) has the highest average roughness (Ra), which is 14 % higher than the Ra of the reference aggregate. The contact angle decreased by almost 4 times and samples had higher absorptivity (19.994 %) when 10 % sewage sludge and 20 % sanitary ceramic were added to the aggregate. The sanitary ceramic waste application may enhance the poor durability characteristics of lightweight aggregate with/without sewage sludge. Replacing natural loess with sanitary ceramic waste material brings benefits both in terms of respect for natural resources and also improves the properties of lightweight aggregates.

Influence of Ceramic Wastes as a Recycled Coarse Aggregate with Different Maximum Sizes on the Concrete

Background Natural raw resources needed for concrete construction are continuously being depleted as a result of infrastructure development that is increasing. As a result, waste material substitutes are highly favored because they adopt a sustainable strategy. Objective In this study, the possibility of substituting natural coarse aggregates with coarse aggregate made from ceramic wall tiles with three different maximum aggregate sizes (12.5, 19, and 25 mm) in three partial replacement levels of natural coarse aggregate by (25, 50, and 75%) was investigated. Methods Concrete's hardened density, compressive and splitting tensile strengths, ultrasonic pulse velocity, water absorption, and volume of permeable pores were all tested experimentally. Results Results indicated that with the increment of the maximum aggregate size, each of the hardened densities, the compressive and splitting tensile strengths and the rate of water absorption diminished while pulse velocity enhanced, regardless of the substitution rate of ceramic aggregate. However, for all maximum aggregate sizes, the mixture containing 25% ceramic coarse aggregate showed a small improvement in mechanical properties. Compared to the reference mixture, which had compressive strengths of 29.31, 38.73, and 47.13 MPa at 7, 28, and 90 days for the 12.5 mm maximum aggregate size, the improvement ratios were 8.9%, 3.7%, and 2.7% at 7, 28, and 90 days, respectively. Moreover, because of increased heterogeneity, internal bleeding, and the development of microcracks in the larger coarse aggregate sizes, concrete with lower ceramic coarse aggregate sizes has a stronger bond than that of the latter. Results also indicated that the mechanical performance of concrete mixtures having ceramic aggregate slightly improved with 25% ceramic coarse aggregate, then lowered in the mixtures with 50% and 75%, consecutively, at all ages. Concrete using ceramic aggregate displays a poor transition zone because of the improper binding between the paste and the coarse ceramic aggregate caused by the aggregate's porcelain texture. Additionally, the water absorption of concrete mixtures containing ceramic aggregate increased with the increase in the percentage of ceramic coarse aggregate. Conclusion The employing of ceramic waste aggregate was shown to contribute to sustainable development and a cleaner environment by producing sustainable concrete from the recycling of ceramic wastes. Each of the hardened density, compressive strength, splitting tensile strength, and water absorption of concrete mixtures decreased and the pulse velocity enhanced as the maximum aggregate size increased. The mechanical properties decreased at all ages in the mixtures containing 50 and 75% of the aggregate, whereas they slightly increased in the mixture containing 25% of the aggregate.

Using nano-CaCO3 and ceramic tile waste to design low-carbon ultra high performance concrete

Abstract China’s annual production of ceramic tiles inevitably produces a large amount of ceramic tile waste, which causes environmental and land occupation problems. Using a high-volume ceramic tile waste to fabricate ultra high performance concrete (UHPC) will reduce the workability and mechanical properties but increase the low-carbon properties. Motivated by such mechanical and low-carbon properties, this study introduced inexpensive, spherical, low-carbon nano-CaCO3 (NC) to improve the workability and mechanical properties of UHPC with a high volume of ceramic tile waste powder and aggregate (UHPCHCTWPA). The results of this study indicated that NC can improve the workability but shortened the setting times of UHPCHCTWPA. NC also significantly increases the mechanical properties including compressive strength, compressive work, flexural strength, fracture energy, and ratio of flexural strength to compressive strength. It is due to that NC enhances the hydration rate and hydration degree, and optimizes hydration product orientation, size, and distribution. Moreover, compared with UHPC, the UHPCHCTWPA with NC reduces energy intensity, CO2 emission, and cost by more than 20%. Therefore, adding NC can make UHPCHCTWPA with good workability, mechanical and low-carbon properties and can effectively and quickly utilize ceramic tile waste.

Utilization of various ceramic waste as fine aggregate replacement into fly ash-based geopolymer

This study aims to utilize a range of ceramic waste to replace sand as a fine aggregate in fly ash geopolymer. Ceramic waste aggregates comprised of brick (BR), floor tile (FT), roof tile (RT), and sanitary ware (ST) have been employed for river sand replacement at 0 %, 25 %, and 50 %. The development in compressive strength was investigated on geopolymer mortar at the ages of 7, 14, and 28 days. The results showed that incorporating FT, RT and ST aggregates exhibited comparable and even higher compressive strength than natural sand. The optimum compressive strength was achieved at 47.4 MPa for 50 % ST specimen, accounting for a 17.52 % improvement. The microstructure revealed that ST aggregates exhibited better interfacial transition zone (ITZ) than sand aggregate, thereby increasing the compressive strength of geopolymer mortar.

Performance of Strength and Modulii Characteristics of Ceramic Waste Aggregate Concrete (CWAC)

Rapid industrialization in 21st century resulted in emission of both by-products and wastes which are producing at an alarming rate in India. Development cannot be ceased by referring to pollution and waste as justification; instead of it is essential to be decided how to reduce and manage the waste generated near by the industries. One of the solution is waste may be recycled or substituted to replace traditional ingredients in new concrete compositions and benefit to reduce their toxic effects on the environment. The Ceramic Industry is one of the largest industries to manufacture ceramic components. In Ceramic Industries, nearly 30% of the waste will be produced on a daily basis because of its unique characteristics of brittle nature and its clay composition. As a result of this, incorporating industrial waste into the concrete mix would help to minimize the usage of natural aggregates into the composition but due to the usage of ingredients are rapidly depleting, as well as help to reduce greenhouse gas emissions. The impact of replacing traditional coarse aggregates with ceramic waste aggregates in the structure of Ceramic Waste Aggregate Concrete (CWAC) is investigated in this paper. The study's parameters included replacing coarse aggregate (CA) with ceramic waste aggregates (CWA) at a rate of 0 to 100% with a regular incremental interval of 20%. Flexural strength and stress-strain behavior of CWAC are examined. Workability, Compaction Factor, Compressive Strength and Flexural Strength Tests were conducted on Regular Concrete and Ceramic Waste Aggregate Concrete (CWAC). Results of CWAC were fruitful compared to Regular Concrete. CWAC20 and CWAC40 are most feasible in replacing Regular concrete in the aspects of Young’s Modulus and Flexural Strength. This study would help to ensure that the quantity availability of CWA near ceramic industries.

Influence of glass powder silica fume and scrapped ceramic waste on the mechanical properties of concrete

Carbon dioxide emissions from cement manufacture have a substantial environmental effect. The massive energy usage in the cement manufacturing process is also an issue. India is dealing with a major energy problem. Cement prices are rising on a daily basis. Furthermore, the usage of waste for the disposal and recovery of natural concrete components might harm the environment. Using trash not only decreases cement production and hence energy consumption, but it also helps to safeguard the environment. The goal of this study is to investigate the characteristics of concrete utilizing silica fume as a partial substitute for cement and glass powder in lieu of fine aggregate. These waste materials were used to replace some of the cement in the concrete samples, and their compressive, flexural, and split tensile strengths were assessed. According to the results, the addition of glass powder and silica fume improves the mechanical qualities of the concrete, but the addition of discarded ceramic waste has the reverse impact. Furthermore, the combination of glass powder and silica fume outperformed each waste item alone. The trials were carried out using Concrete Mix M40, which had been modified by substituting 40% of the coarse aggregate with waste ceramic aggregate, 20% of the fine aggregate with glass powder, and 10% of the cement with silica fume cement. Following tests of the concrete's compressive, split, and flexural strengths at 7, 28, and 28 days, the appropriate replacement dose was considered. The load-bearing capability of the beams is approximately the same as that of conventional beams throughout the board for the 20% replacement levels applied. The research comes to the conclusion that natural coarse aggregate may be used in place of scrapped ceramic aggregates (SCA) in concrete. Other beam specimens and typical beam specimens (CM) deflected more with load than a beam specimen with 10% SF, 20% GP, and 10% SCA. Modern technology allows for the production of lightweight, high-strength concrete at a low cost. When compared to CA, SCA lowered aggregate weight.

Reuse of clay brick and ceramic waste in concrete: A study on compressive strength and durability using the Taguchi and Box–Behnken design method

This study investigated the compressive strength and durability of concrete containing clay brick waste powder (CBWP) and ceramic waste aggregate (CWA). First, we applied the Taguchi and Box–Behnken design method to find the optimal conditions for ensuring the maximum compressive strength of concrete. We considered three factors, including the amount of CWA, the amount of CWBP, and the water–cement ratio in the concrete mixture, as factors influencing the compressive strength of concrete. Second, we studied the durability of concrete with optimal mixture. The experimental results showed that the factor that most influenced compressive strength was the amount of CBWP as a cement substitute. The amount of CWA had the least effect on compressive strength. Maximum compressive strength was reached when 100% CWA was used as a coarse aggregate. The compressive strength of concrete containing CWA and CBWP decreased after 7 days but increased again after 28 days. Moreover, the use of CWA and CBWP improved the chloride ion permeability and sulphate resistance of the concrete compared to the control concrete. Meanwhile, the concrete containing CWA and CBWP had lower abrasion resistance than the reference concrete.

Mathematical Modelling of Compressive Strength of Recycled Ceramic Tile Aggregate Concrete Using Modified Regression Theory

At present, the large quantity of wastes generated by the ceramic industry is not reused in any significant quantity. Research has shown the feasibility of incorporating these wastes into concrete production. This will benefit both the ceramic and concrete industries. However, not much research data is available on the use of ceramic wastes as fine aggregate material compared to their use as coarse aggregate material. Moreover, there are presently no models for predicting the properties of ceramic waste aggregate concretes. In this study, a modified regression theory based on Taylor’s series was adopted to formulate mathematical model for predicting compressive strength of concrete into which Recycled Ceramic Tile (RCT) is incorporated as fine aggregate. Preliminary tests on RCT indicate that it is a suitable fine aggregate material for concrete production. It has also been established that addition of RCT improves compressive strength of concrete and reduces concrete’s workability. The formulated model is a function of the mix proportions of its constituents and its predicted responses are in good agreement with experimentally observed data. The model has been tested using student’s t-test and analysis of variance and has been confirmed to be adequate and hence is validated.

Evaluating the Influence of Carbon Fiber on the Mechanical Characteristics and Electrical Conductivity of Roller-Compacted Concrete Containing Waste Ceramic Aggregates Exposed to Freeze-Thaw Cycling

Traditional methods of removing snow and ice from pavements using chemicals are combined with mechanical removal that involves a lot of manpower, advanced machinery, chemicals that are harmful to the environment, and damage to pavements. Furthermore, annually, large quantities of ceramic materials become waste due to their fragile nature during processing, transport, and installation, and their accumulation in the nature has brought about environmental and health-related concerns. Therefore, the study aims to investigate the effect of using waste ceramic as a replacement for fine aggregate in roller compacted concrete (RCC) and the application of carbon fiber to improve the mechanical properties and electrical conductivity of RCC. To achieve this goal, several tests such as compressive strength, indirect tensile strength, electrical resistance, chloride ion penetration, specific gravity, and skid resistance tests were carried out on the fabricated samples before and after freeze-thaw cycling exposure. The experimental results illustrated that replacing waste ceramics with fine-grained aggregate increased the compressive strength and tensile strength of RCC. Furthermore, carbon fiber increased tensile strength but had no noticeable influence on compressive strength. Freeze-thaw conditioning led to a reduction in the compressive and tensile strength regardless of the aggregate type and carbon fiber utilization. In the samples containing waste ceramic aggregate, the electrical conductivity was reduced, and by adding carbon fiber, its electrical conductivity was increased. Exposure to freeze-thaw cycling resulted in an increase in electrical resistance and the passing charge. Waste ceramic incorporation created a similar mixture in terms of skid resistance, while in contrast, the carbon fiber slightly reduced the skid resistance. In addition, freeze-thaw conditioning resulted in an increase in the skid resistance. Besides, in this study, kernelized support vector regression (KSVR) and radial bias function (RBF) neural network models were proposed to estimate the indirect tensile strength (ITS) and compressive strength (CS) values. The results showed that both models have high performance in estimating these values, but RBF was a more efficient model.

Design of a non‐shrinking silica fume high‐performance concrete with recycled ceramic tile aggregate

AbstractInternal curing (IC) process introduced via a water‐entraining agent using lightweight and porous aggregate has become an essential component in designing high and ultra‐high‐performance concrete (HPC/UHPC). This paper presents experimental results demonstrating the effectiveness of using recycled ceramic tile aggregates (RCTA) derived from waste ceramic tiles as an IC agent for high‐performance structural elements. Previous studies by the author have confirmed the efficiency of both the pre‐saturated recycled porous ceramic coarse aggregate (RPCA) as an IC and shrinkage compensating agents in mitigating autogenous shrinkage and the induced internal self‐stress in HPC mixtures. The main objective of this study is to investigate the effect of two different curing systems (internal curing using the waste ceramic aggregate combined with shrinkage compensating agents) on silica fume (SF) HPC behavior. The shrinkage compensating agents include a combination of shrinkage‐reducing agent (R) and expansive additive (E). The influence of this combined ternary curing system on the mechanical properties, including compressive, flexural, and splitting tensile strengths, modulus of elasticity, autogenous shrinkage, and internal self‐induced tensile stress, were investigated. The obtained results indicate a substantial reduction in the autogenous shrinkage strains magnitude and, consequently, the internal self‐induced tensile stress in the HPC mixtures designed with these two curing systems. It was also found that this combination of the two curing systems resulting in a hybrid curing system, performs much better than the single incorporation of shrinkage‐compensating agents. Besides, a long‐term strengths improvement was recorded for mixtures designed with the RPCA. Incorporating recycled aggregate in the design and production of HPC could further promote concrete sustainability by reducing the amount of virgin extracted non‐renewable minerals, reducing the energy required to extract and process natural aggregates and the CO2 generated, and also reducing solid waste materials disposal.

Mechanical stabilization of aeolian sand with ceramic brick waste aggregates

The use of ceramic brick waste is a sustainable and eco-friendly alternative for the stabilization of soils in comparison with other more traditional additives, such as cement. The addition of different types of construction wastes to soils has been so far mainly investigated for cementitious materials rather than for earthworks projects and civil infrastructures, and even less for aeolian sand. In this research, ceramic brick waste aggregates have been experimentally studied as an option to improve the geotechnical properties of aeolian sand from Jeddah (Saudi Arabia). Three different percentages of replacement have been considered, 15 %, 30 % and 45 %, since such high replacements have not been investigated in the literature. This research is focused on employing aeolian sand for earthworks applications. The experimental program is based on size analysis, compaction and California Bearing Ratio (CBR) tests specially modified to manage the represent different lateral confinement in the samples, and the results are confirmed by scanning electron microscope (SEM). Experimental results demonstrate an improvement of the overall geotechnical properties of the aeolian sand after mixing it with ceramic brick waste aggregates by means of the correction of the missing particle fractions and the addition of more aggregated particles, improving the coefficient of uniformity (Cu) from 2.37 (aeolian sand) up to 3.56 (45 %-brick waste). The CBR obtained for the two higher replacements is around 33 % in confined conditions (triple than aeolian sand) and almost 1 % for unconfined conditions independently of the replacement. An optimal replacement of 30 % has been identified and the possible crushing and breakage of the waste aggregates are discarded. This mechanical stabilization can be considered feasible and environmentally suitable.

Assessing Structural Performance of Ceramic Waste as Partial Replacement of Coarse Aggregate on Properties of Concrete

The need to reduce the increasing demand for crushed granite as coarse aggregate as well as the need to safeguard the environment from degradation has given rise to various researches on alternative materials that can serve the same purpose while minimizing environment hazard. This study assessed the suitability of waste ceramic tiles as coarse aggregate in concrete and to ascertain its strength against normal crushed granite. Crushed waste ceramic tiles from ceramic manufacturing industries and construction sites were mixed with crushed granite stones as partial replacement for concrete. A mix ratio of 1: 1.11: 2.72 (cement: sand: stones) for nominal C30 concrete was produced with (0, 10, 20, 30, 40, 50 and 100) percent volume ceramic waste aggregate replacement for crushed granite at a constant water-cement ratio of 0.5. Concrete cubes of size 150mm x 150mm x 150mm were produced and tested for 7 days and 28 days compressive strength, density and water absorption. The results revealed the viability of waste ceramic tiles as partial replacement for crushed granite in concrete production, but the partial replacement should not exceed 20% as recommended maximum for structural concrete. This mode of recycling ceramic waste could positively sustain the environment.

Design of Sustainable Asphalt Mixtures for Bike Lanes Using RAP and Ceramic Waste as Substitutes for Natural Aggregates

The European Union is promoting a circular economy in which waste management plays an essential role. Although many studies focusing on the use of recycled materials in the manufacture of asphalt mixtures for roads have been developed, studies related to the use of recycled materials for the construction of bike lanes are scarce. In this context, the main objective of this research is to explore the behaviour of asphalt mixtures with high replacement rates of recycled materials—reclaimed asphalt pavement (RAP) and ceramic waste—by natural aggregates for the construction of bike lanes. A total of six types of asphalt mixtures were designed by combining the content of the recycled materials and natural aggregates, with replacement rates ranging from 50% to 100%. The asphalt mixtures were characterized by determining the bulk and maximum density; the void content in the mixture; and the aggregate, stability, and deformation. In conclusion, the mixture C50R50, which consists of a full replacement of natural fine and coarse aggregates by 50% ceramic waste aggregate and 50% RAP, is proposed as the most appropriate sustainable solution. In this way, the use of this asphalt mixture allows for boosting the use of recycled aggregates as well as minimizing the consumption of virgin bitumen due to its residual bitumen content. Compared to the reference asphalt mixture consisting of 100% of natural aggregates, C50R50 is a more open mixture, with higher void content and somewhat more brittleness. Even so, the mixture C50R50 could be good enough for use in low traffic roads.

THE COMPARATIVE EXPERIMENTAL STUDIES ON THE SUITABILITY OF CERAMIC WASTE AGGREGATE AND RECYCLED ASPHALT PAVEMENT AGGREGATE AS AN ALTERNATIVE FOR BASE COURSE MATERIAL

The study aimed to assess the suitability of ceramic waste aggregate and recycled asphalt pavement aggregate as an alternative for base course material. An experimental research design method and Non-Probability sampling techniques were used. The comparative analysis of ceramic waste aggregate and recycled asphalt pavement aggregate were blended with crushed stone aggregate at different proportions by weight and their laboratory result was compared with standard specifications. The study results shown that the aggregate crushing value (ACV) for neat Crushed stone aggregate (CSA) and Recycle asphalt pavement (RAP) are 19.20% and 8.20% respectively and the blended CSA with 10%, 20%, 30%, 40% and 50% of RAP were 18.20%, 16.4%, 15.90%, 14.40%, and 13.10% respectively. Similarly, a 24.32% - 12.06% for Los Angeles abrasion (LAA) and 18.50% - 12.60% for aggregate impact value (AIV) were found to the lower and higher value in the range of the test result. The CBR test for a different proportion of RAP (10% - 50%) blended with CSA was also conducted and an economically acceptable result of 104.20% was found at 30% RAP mix at 98% maximum dry density (MDD). Additionally, the California Bearing Ratio (CBR) test result for 100%RAP at 98%MDD was 49.10%. On the other hand, the experimental tests were conducted on different proportions of Ceramic West aggregate (CWA) (10%, 20%, 30%, 40%, and 50%) which satisfy the principal mechanical properties of aggregate materials. The ACV result for neat CWA is 26.70% while the blended CWA- CSA aggregate was tested with 10%, 20%, 30%, 40%, and 50% of CWA with its complement of CSA as indicated and at 20% CWA replacement of CSA test results were (21.60%, for ACV), (26.31% for LAA), (106.9 for CBR) and (20.60 for AIV). For this investigation an economically acceptable results were achieved by satisfying the Ethiopian road authority (ERA) standard specification limit at 20% CWA and 30% RAP blended with CSA for base course construction material.

Effects of recycled ceramic aggregates on internal curing of high performance concrete

High performance concrete (HPC) is widely used in concrete structures because of its excellent mechanical properties, good workability, and outstanding durability. However, as HPC usually has a low water to cement ratio, the hydration of cement would cause rapid decrease in the humidity inside concrete, leading to autogenous shrinkage of HPC. Internal curing is a method to maintain the internal humidity of concrete by introducing water storage materials into HPC. In this study, three different waste ceramic aggregates are employed as internal curing materials for HPC. The physical properties and the chemical compositions of the three ceramic materials are studied through microscopic tests. The internal curing efficiency is then investigated through mechanical tests and autogenous shrinkage tests of HPC. The experimental results show that the properties of HPC are greatly affected by the porosity and replacement ratio of the ceramic aggregate. A better shrinkage control can be achieved by using the aggregate with larger porosity, while higher strength is obtained when the replacement ratio is lower. In general, all three recycled ceramic aggregates are highly efficient in reducing autogenous shrinkage of HPC while maintaining a satisfactory level of mechanical properties, and wall tile with 20% replacement ratio is considered to perform the best.

Analysis of Measured Parameters in Relation to the Amount of Fibre in Lightweight Red Ceramic Waste Aggregate Concrete

The present study provides a correlation and regression analysis of lightweight waste aggregate concretes with varying degrees of fibre reinforcement. The concrete mix contains pre-soaked red ceramic waste aggregate, expanded clay coarse aggregate and Portland cement. Copper-coated crimped steel fibre was used as the reinforcement. The experimental results included properties measured by destructive test methods—compressive strength, splitting tensile strength, static modulus of elasticity, the limit of proportionality, shear strength; and by non-destructive test methods—dynamic modulus of elasticity and surface electrical resistivity. These properties were analysed to study the relevancy and significance between non-destructive and destructive methods of measurement in the case of different amounts of fibre. The results show differences in the degree of fit to the linear and quadratic regression curves for pairs of destructive and non-destructive test results. As expected, the linear relationship can be applied in a few cases, but the quadratic curve must be used for a few pairs. Another observation is that it is not possible to neglect the amount of fibre in the correlation analyses of the measured properties.

Effect of ceramic tile waste on strength parameters of concrete-a review

The shift to economy will be heavily influenced by the ceramic sector. Non-renewable materials have been converted into partially renewable resources with advancements in recycling. In accordance with these developments, the use of wastes, such as ceramics, as alternative aggregate materials for building have sparked a lot of study. Ceramic waste aggregates may be utilised to solve complicated challenges like material shortages on building sites and minimise waste in the environment. The greatest impediment to broad use of waste recycling is a lack of understanding of its impact on ceramic tile production. Ceramic waste can be used in concrete to improve its strength and other durability factors. In this review, the study is focused on the conduct of concrete made with the replacement of coarse aggregate with waste made from ceramic tile. Ceramic waste can be used as a partial replacement of coarse aggregate to achieve different properties of concrete. Apart from the need to dispose solid waste, the civil construction sector has demanded the development of novel materials with improved technical features. The utilisation of solid waste in concrete has piqued the imagination of indefinite investigators experimenting with waste material as aggregate substitute. The substitute for coarse aggregate is ceramic tile waste in concrete, which had improved mechanical, physical and longevity properties. It is most essential to develop eco-friendly concrete from ceramic waste. Finally, the most environmentally friendly concrete is chosen, since it has the best compressive strength and impact on the environment. It was determined that using ceramic tile waste in the building industry more over lowers the construction cost for materials though aids in achieving long term success.