Cube Compressive Strength Research Articles

Partial replacement of cement with induction furnace dust for enhancing concrete properties with and without Aspergillus niger fungus: a green building approach.

Induction furnace dust (IFD) is a waste product of the alloy-making process whose disposal by landfill process becomes unsafe due to the presence of heavy metals in high concentrations. It further reduces the fertility of soil and pollutes the air making it harmful for human health. However, efforts can be made to utilize this dust in construction material as it has the same oxides (silica, aluminium oxide, and magnesium oxide) as found in cement, bricks, fine aggregates, coarse aggregates, etc. This study is aimed at the utilization of pre-treated induction furnace dust with Aspergillus niger fungus to replace cement for the construction of concrete structures through Taguchi design of experiments (DOE). The purpose of Aspergillus niger fungus is to reduce the heavy metal concentration from IFD to prevent the surroundings from getting toxic. The optimization of operating parameters such as dust replacement (5%, 10%, and 15%), curing days (7, 14, and 28 days), and cell count of fungus (104, 106, and 108 CFU/ml of distilled water) is done using Multi-objective Genetic Algorithm (G.A.) for effective compressive strength and water absorption capacity of cubes. The best results have been found in the case of IFD treated with Aspergillus niger fungus having dust replacement, curing time, and cell count of 14.96%, 28 days, and 9.22 × 107 CFU/ml of distilled water respectively for concrete production.

Mechanical Properties of Light Weight Concrete using Lightweight Expanded Clay Aggregate

Abstract: This research investigates the impact of partially substituting coarse aggregate with light weight coarse material (LECA). In numerous aspects, LECA mirrors the properties of coarse aggregate. Because self-weight accounts for a major amount of the total load applied to the structure, LECA is utilized in concrete to lower the need for coarse aggregate and in the design of concrete buildings. This is crucial in circumstances like poor soils and tall constructions. It also offers significant advantages in terms of lowering concrete density, which improves labour efficiency. Lightweight concrete has a lower density than standard concrete and provides better thermal insulation. The main purpose of this study is to examine the weight and strength characteristics of concrete, such as cube compressive strength, split tensile strength cylinders, and flexural strength of light weight concrete versus conventional concrete by substituting LECA for natural aggregates by 25%, 50%, 75%, and 100%, respectively. For far over two millennia, lightweight aggregate has been used successfully. Keywords: Lightweight Expanded Clay Aggregate (LECA), Light-weight concrete, Flyash, Compressive Strength, Density.

EFFECT OF TREATED WASTEWATER ON PROPERTIES OF CONCRETE

By introducing innovative strategies and methodologies, the modern world is focusing on asset conditioning, sustainability, and recycling. In order to assess the strength of concrete constructed with treated waste water, an experimental investigation was done. Before filling the mould, tests are performed on the cement paste. The curing time for the test cubes was 3, 7, and 28 days. The compressive and tensile strength of hardened cement cubes were measured after curing. The compressive and tensile strengths of cement cubes made using treated waste water were higher than those of cubes made with regular water . Following the cement tests, the concrete paste was applied to the moulds, which were subsequently tested after 7 days, 14 days, and 28 days of curing. The compressive strength test was calculated for the concrete cubes. The results revealed that the concrete constructed using treated sewage water had higher strength than regular water. So as per the results it can be concluded that the treated sewage water can be used for preparation of cement mortar and cement concrete. Keywords - Normal water, Treated Waste Water, Cement Cubes, Concrete Cubes, Coagulants.

Mechanical properties of geopolymer concrete with varying cement content using flyash and ground granulated blast furnace slag

In the recent past, the importance of geopolymer concrete as an eco-friendly product to replace portland cement concrete is continuously increasing over time. Yet less research effort has been invested in this area compared with some topical issues in civil engineering. Thus, the objective of this article is to analyse the mechanical properties of geopolymer concrete where the cement is replaced by fly ash and ground granulated blast-furnace slag (GGBS). Sodium silicate and sodium hydroxide 8 molarity solution was used. The compressive strength of a cube in an 8 molarity solution was measured for various mixtures (i.e. G50F50 where G and F stand for GGBS and flyash, respectively while the numerical value denotes the cement percentage) and the cement contents (i.e. 0, 10, 20, 30, 40%). The cube specimens are 100mmx100mmx100mm with the ambient curing at 35- 400C. In total, 9 cubes, 3 beams and 3 cylinders are cast at 7days, 14days and 28days while the compressive strengths of different mixes and cubes are calculated. For 28days, beams and cylinders are measured for flexural and tensile strength. The compressive strength at 7,14 and 28 days nearly doubled the target strength by using geopolymer concrete instead of normal concrete. Compressive strength is about 10% higher at 7 and 14days and 20% higher at 28days after replacing 40% of the cement. Flexural strength increased by 50% when 40% of the cement was replaced but split tensile strength only increased by 1%.

Compressive strengths of concrete by partially replacing sand with iron-ore waste

Sand is extracted at a rate more than its restoration. Nevertheless, the availability of sand in the growing demand of the construction industry remains a challenge due to cost and quality problems. This study investigates the compressive strength of concrete by partially replacing sand with iron-ore waste. Experimental investigations were conducted to study the compressive strength, physical, mechanical and fresh property of concrete containing iron-ore waste. During the experiment, concrete cubes were prepared with 10-100% composition of iron ore waste to evaluate their compressive strength. Results from the experimentation revealed that, concrete cubes prepared by partially replacing sand with iron ore waste often yield a better compressive strength than a conventional concrete. More so, the densities of concrete cubes were observed to remain consistent but increased slightly, notably at 10% and 20% of waste replacement. Meanwhile, at 30% waste replacement, there was reduction in compressive strength at 28days curing age and this reduction continued as percentage iron ore increased towards 100%. Also, increase in compressive strength of concrete cubes was observed at 10-20% sand replacement with iron ore. It was therefore established that concrete produced under 10% and 20% replacement, can be utilized for all construction purposes requiring concrete.

Experimental investigation of fire effects under axial compression on ductility and stiffness of (SIFCON) columns

AbstractThis article is an experimental study of the efficiency after fire exposure of slurry infiltrated fiber concrete (SIFCON) columns. The aim of this paper is to present a comprehensive study of the fire effect on the stiffness, ductility, and energy absorption capacity of axially loaded SIFCON columns and to inspect the effect of hollow ratio and cross section shape on the energy dissipation ability, ductility, and stiffness features of the post‐fire behavior of these columns. Hybrid fibers were used to cast SIFCON columns with 6% fiber ratio (3% hooked end fiber + 3% straight micro fiber). The results showed that the cube compressive strength decreased by 25.1% and 53% when exposed to fire at a temperatures of 600 and 900°C, respectively. The results obtained revealed that after exposure to fire, the indices values of displacement ductility are not strongly impaired and it has been shown that the assessment of the energy dissipation ability is more relevant in this situation. Whereafter fire exposure at 600°C, the SIFCON columns lost about 11%–31% of the energy absorption capacity and about 39%–57% after fire exposure at 900°C. In comparison, after fire exposure, the secant and initial stiffness greatly degraded and the reduction percentages became higher with a rise in fire temperature from 600 to 900°C.

Application of statistical model for predicting the compressive strength of sandcretes made with different fine aggregates available in Nsukka

The masonry unit commonly used for wall partitioning in Nigeria is Sandcrete and is comprised of cement, fine aggregate (sand), and water. This research is aimed at ascertaining the effect of different fine aggregates available in Nsukka Local Government Area of Enugu State Nigeria, on the compressive strength of sandcrete. This is also, to contribute to quality maintenance in the production of sandcretes in Nsukka. A mix ratio of 1:6 for cement and sand was used in the production of the sandcrete cubes and a water-cement ratio of 0.6 was maintained in all the mix. The Sandcrete cubes were produced using the three major fine aggregates (river sand, gutter sand, and obimo sand) available in Nsukka. The results obtained show that sandcrete cubes produced with the obimo sand gave the highest strength in compression, while the gutter sand attained the least strength in compression. The E-view software was used to formulate a statistical model for predicting the compressive strength of sandcrete cubes using any of the different fine aggregates considered in this study.

Study on the Material Properties of Microconcrete by Dynamic Model Test.

As an important water conveying structure, the seismic safety of the hydraulic aqueduct has attracted considerable interest. Different from the general bridge structure, the seismic analysis of the aqueduct structure needs to consider its fluid–structure interaction. The existing numerical simulation methods cannot truly reflect the fluid–solid coupling mechanism. Therefore, scholars began to use shaking table tests to study the fluid–structure interaction mechanism. However, the research is immature, and it is mostly focused on the seismic response analysis, and there are few studies on the model test similarity ratio and model material properties. Based on this, in this paper, according to the requirements of the test similarity ratio, the orthogonal experiment was used to explore the influence of barite sand content, water–cement ratio, fine sand ratio, and lime ratio on the mechanical properties of microconcrete. The performance indicators of microconcrete under different mix ratios vary widely, with a minimum variation of 19% and a maximum of 102%. Barite sand has the most significant control effect on the density, and the water–cement ratio has the most significant control effect on the compressive strength and elastic modulus. The density variation range is 2.37–2.81 g/cm3, the cube compressive strength variation range is 18.37–36.94 MPa, and the elastic modulus variation range is 2.11 × 104–3.28 × 104 MPa. This study will provide certain evidence for the similarity ratio design and material selection of the scaled model test of the fluid–solid coupling structure.

The incorporation of recycled brick aggregate in 3D printed concrete

In this paper a more sustainable 3D printable concrete is developed by the replacement of natural aggregate in a concrete mix with recycled brick aggregate (RBA). An existing 3D printable concrete mix is used as reference and adjusted by replacing 64% of its natural aggregate with RBA. The potential for sustainability in the building sector by automation as well as recycling of construction and demolition waste is therefore addressed. To date no research exists on the use of recycled brick aggregate in 3D printed concrete, which has particular relevance in developing countries, where construction with bricks remains a popular option.Two different types of RBA from local demolition projects are considered in three mix designs containing Type 1 RBA, Type 2 RBA and a combination of Type 1 and Type 2 RBA. To arrive at the three mix designs, the water absorption and porosity of each RBA type are first tested to determine the estimated additional water requirement in each concrete mix. The ASTM mini-slump cone test is used as a replacement of a full rheological characterisation to determine the achievement of acceptable printability.After the fresh-state characterisation, the mix design containing the more porous Type 2 RBA is chosen for mechanical characterisation based on availability of materials and relevance of highly porous recycled brick aggregate in future studies. Mechanical characterisation tests are performed on the chosen RBA mix, as well as the reference 3D printable mix for comparison. The mechanical characterisation tests include compressive cube strength tests, direct tensile tests on 3D printed specimens, and uniaxial compressive tests on 3D printed specimens. The results of the mechanical characterisation tests show that the replacement of 64% of the natural aggregate with RBA in the mix reduces the compressive cube strength by 25%, the interlayer tensile 3DPC strength by 20% and the compressive 3DPC strength by 14% and 20% in Direction 1 and Direction 3 respectively.

Mechanical Characteristics of GGBFS/FA-Based Geopolymer Concrete and Its Environmental Impact

Geopolymer concrete is considered to be one of the best alternatives to portland cement concrete, partially or totally, not only because it decreases the CO2 emissions released during ordinary portland cement (OPC) production, but also due to its acceptable mechanical and durability properties. This study presents the experimental results of using fly ash (FA) and ground granulated blast-furnace slag (GGBFS) on fresh and hardened geopolymer concrete properties, considering the effects of several parameters such as binder type and content, alkaline binder ratio, molarity, Si/OH ratio, cement ratio in the binder, water addition, and curing temperature. These parameters were studied over a wider range than in previous research using local by-product waste to determine the validity of the additives for massive production of geopolymer concrete. The studied properties were the slump, 7- and 28-day cube compressive strength, tensile strength, and modulus of elasticity. For all studied mixes, the increase of the binder content, sodium hydroxide concentration, and cement ratio of the binder enhanced the concrete properties, whereas the increase of the alkaline binder ratio, Si/OH ratio in the solution, and additional water decreased the concrete properties. An increase of curing temperature from 30°C to 90°C improved the fly ash–based geopolymer concrete mechanical properties by an average of 35%; in contrast, the same increase in temperature decreased the concrete mechanical properties of GGBFS-based geopolymer concrete by an average of 22%. Equations for tensile strength and modulus of elasticity in terms of compressive strength were proposed and were compared with equations from standards and equations previously proposed in the literature. Finally, the environmental impact in terms of CO2 emissions was found to be on average 90% less than that of conventional concrete of the same grade.

Research on optimal design of mechanical properties of hybrid fiber‐reinforced concrete

AbstractIn this study, the influence of the dosage optimization of steel fibers (SFs), basalt fibers (BFs), and polypropylene fibers (PPFs) on the mechanical properties of hybrid fiber‐reinforced concrete (HFRC) is investigated, including cube compressive strength, splitting tensile strength, and prism compressive strength. The orthogonal method was used to design the fiber mixtures to optimize the performance of the specimens. IBM SPSS Statistics software was used to analyze the significance sequence of the influencing factors of SFs, BFs, and PPFs through range and variance. The influence degree and significant affecting factors of the three fiber types were obtained, and the failure states of the HFRC specimens were analyzed. Finally, a strength prediction model for HFRC was established based on the test results. The results show that for the degree of influence on the strength of HFRC, the degree of influence of SFs was greater compared to BFs, and the degree of influence of PPFs was the smallest. In addition, for the factors that affect the strength of HFRC, the content of SFs was the primary factor, the fiber content of BFs was less important, and the content was not an important factor for PPFs. The strength prediction model established based on the orthogonal test data can well reflect the influence of three fibers types and contents on the strength of HFRC. In order to verify the validity of the present model, experimental results reported in the literature were compared with the values calculated with the present model.

Properties of structural concrete with high-strength cement mixes containing waste paper sludge ash

This paper studies the use of wastepaper sludge ash (WPSA) for structural concrete in binary and ternary mixes with high-strength cement and two industrial by-products, ground granulated blast-furnace slag (GGBS) and pulverised fuel ash (PFA). The potential use of WPSA in this type of concrete and its combination with other supplementary cementitious materials has not been established; thus, further research is needed prior to industrial-scale applications. A series of tests investigated the soundness and setting times of the resulting cements, the fresh concrete workability, cube compressive strength at various curing times, tensile splitting strength, flexural strength, static modulus of elasticity, water absorption and carbonation of the resulting concrete. Good binary WPSA mixes were achieved with high early strength gains, but workability reduced; binary mixes with 15% WPSA, were overall the best in terms of strength and durability, whilst maintaining pumpability. An improvement in the carbonation resistance of ternary GGBS and PFA mixes was also indicated upon addition of WPSA although their strengths were lower than those of binary WPSA mixes. Further mix optimisation can lead to other robust and durable high-strength cement systems with WPSA, allowing for higher cement replacements in structural concrete, for improved environmental impact.

Research on mechanical properties of ultra-high performance fiber reinforced cement-based composite after elevated temperature

This research investigated the mechanical properties of ultra-high performance fiber reinforced cement-based composite (UHPFRC) after exposure to elevated temperatures ranging from 200 to 300 °C. The cube compressive strength, axial compressive strength, and flexural strength were studied with 150 specimens. The effects of volume ratio of steel fiber, elevated temperature, and high temperature duration on the properties of UHPFRC were discussed in the present study. The result indicated that the compressive strength and axial compressive strength were improved after the UHPFRC was subjected to the elevated temperature. However, the effect of elevated temperature was not significant on the flexural strength. The effects of steel fiber volume ratio on the properties of UHPFRC were obvious. The cube compressive strength, axial compressive strength, and flexural strength were greatly improved with the rising of steel fiber volume ratio. Furthermore, the calculation formulas of the cube compressive strength, axial compressive strength, and flexural strength of UHPFRC were proposed in this presented study. The calculated results were compared with the test results, which indicated that the calculated formulas were greatly agreed with the test.

Mechanical properties and compressive constitutive relation of solid waste-based concrete activated by soda residue-carbide slag

The resource utilization of solid wastes such as soda residue (SR), carbide slag (CS), and iron tailings was improved in this study, which combined iron tailings aggregate to prepare the solid waste-based concrete (SCT) based on the previously developed SR-CS co-activated blast furnace slag-fly ash binder. Considering various factors such as composition of binder, water-binder ratio, and aggregate type, the development rule of mechanical properties of SCT was revealed through the tests of cube compressive strength (fcu), axial compressive strength (fcp), splitting tensile strength (fct), flexural strength (fcf), ultrasonic pulse velocity (UPV), and the compressive constitutive relationship was established through the compressive stress–strain test. The results demonstrated that the early compressive strength of SCT was slightly low, which could be improved through suitable heat curing (60-75℃@12 h) and would not produce an unfavorable effect on its late strength. SCT exhibited excellent axial compressive, tensile, and flexural strengths, where the 28d values fcp, fct, and fcf were 86.8 ± 3.2%, 11.5 ± 0.8%, and 14.7 ± 0.7% of fcu, i.e., higher than that of Portland cement concrete (PCC) with the same grade. The 28d UPV of SCT was 3.677–4.311 km/s, indicating good compactness; thus, SCT could be defined as high-quality concrete. SCT had a relatively longer plastic section during uniaxial compression and showed significant brittleness after peak stress. Its elastic modulus (13.12–19.13 GPa) was positively correlated with compressive strength (20.3–34.4 MPa) and was lower than that of PCC with the same grade. The prediction model of fcu, its quantitative relationships with fcp, fct, and fcf, and the constitutive relationship under uniaxial compression were established by statistical regression, which agreed with the test results. Overall, SCT showed a little discrepancy in mechanical properties compared with the regular aggregate concrete with the same binder.

Development of Self-Compacting Concrete using Composite Cement with Partial Replacement of Potable Water with Treated Wastewater

Abstract: Due to the rapid urbanization in the world, the groundwater level in this continent is decreasing by days. In addition, sea levels are rising due to global warming. For this reason, potable water resources are depleting at an alarming rate in many countries. This trend is observed not only in India, but all over the world. The study discusses the vitality of treated domestic and industrial wastewater that can be used for concreting at construction sites which can help to eliminate the potable water problem. Different physical and chemical properties of the industrial and domestic treated wastewater will be identified. Its effect on the properties of self-compacting concrete was examined in this study. The main objective of this research was to provide a durable and effective solution to the water scarcity. SCC can help mitigate these types of problems in such harsh jobsite environments. Preferably the development of concrete mixes, where pouring and compacting is less dependent on available labor at a particular site, can help improve the actual quality of concrete in the structure and thereby its durability. It is therefore an important driving force in the development of self-compacting concrete. This thesis demonstrates an opportunity to use treated wastewater as an alternative to potable water in concrete. This trial investigation has been carried out at SCC with composite cement having different compositions. Potable water was replaced with treated wastewater by 50% and 100%. Using these additions M30 and M35 grade SCC were casted. The properties of fresh concrete were determined using the slump flow, T500mm test, the V-funnel test and the L-Box test. In addition, this study highlights the average compressive strength of cubes, tensile strength at fracture and flexural strength of concrete. From the above results of fresh concrete and hardened concrete properties, it can be inferred that treated wastewater can be used as a substitute of potable water. Keywords: Potable water, Treated wastewater, SCC, slump flow, V-funnel, L-Box, Compressive strength, Split tensile strength, Flexural strength.

Preliminary Investigation on Properties of Novel Sustainable Composite: Fish Scales Reinforced Cement Concrete

This study focused on analysing the effect of fish scales reinforcement on fresh and hardened-state properties of concrete. For this purpose, 24 cubes and 24 cylinders were casted at a design mix ratio of 1:2.3:4.3. The water-cement ratio of 0.57 was maintained. The fish scales reinforcement levels of 0%, 1%, 1.5% and 2% by weight of cement were maintained for casting of specimens. For fresh-state assessment, the workability of concrete mixes was observed by slump test and the results showed that, with the addition of fish scales, the slump value decreased due to increase in water demand. With the addition of 2% Fish Scales, the workability of concrete mixes reduced by 36.40%. The compressive strength and tensile strength of concrete cubes and cylinders were tested with Universal Testing Machine (UTM) at curing period of 7 and 28 days. Out of 48 specimens casted, a total of 24 specimens were subjected to compressive strength test while other 24 specimens were tested for tensile strength. The results reported that with addition of 2% fish scales in concrete, the tensile strength of concrete increased but the compressive strength initially decreased and later increased. It can thus be concluded that the fish scales can be incorporated in concrete with steel to enhance the tensile strength of concrete. Keeping the initial decrease in compressive strength of concrete in consideration, it can be recommended that the fish scale reinforced concrete can be safely used in light weight structures and non-structural elements like floor slabs and ribs.

The Effects of Plastic Waste Materials on the Physical and Strength Properties of Floor Tiles

Human activities often generate solid waste, such as plastics. The disposal of this waste is usually a setback. This paper aimed to examine the viability of using plastic waste and white cement to produce floor tiles. Waste was collected from waste disposal facilities within Benson Idahosa University. The materials were cleaned and dried, and plastics were shredded. Waste materials were then mixed with white cement in different ratios. Compressive strength tests were performed to verify the suitability of utilising these solid wastes to make floor tiles. Shred plastics that were passed through a sieve with an average diameter of 1 to 2 mm were utilised. The cubes were cast and cured for 7, 14, and 28 days. The compressive strength of the cubes was tested using a universal testing machine. The study found that the addition of up to 50 % of cement resulted in a more than a 10-fold increase in the compressive strength of the cast cubes. On the other hand, the inclusion of plastics reduced the compressive strength of the cubes. Furthermore, increasing the number of plastics increased water absorption, whereas larger amounts of cement reduced water absorption. Plastics are a common waste produced by man; hence, they are easily accessible and a very economical material to produce floor tiles.

Experimental Analysis of Recycled Aggregate Concrete Beams and Correction Formulas for the Crack Resistance Calculation

This paper studies the similarities and the differences between natural aggregate concrete (NAC) beams and recycled aggregate concrete (RAC) beams in terms of concrete material properties, bearing capacity, and crack resistance and further proposes correction formulas for cracking moment calculation of RAC beams that consider different recycled aggregate substitution ratios. First, the basic mechanical properties (e.g., cube compressive strength, axial compressive strength, and elastic modulus) of RAC blocks were tested; second, comparative bending tests of RAC beams and natural aggregate concrete beams were conducted, in order to obtain the cracking moments, yield bending moments, ultimate bending moments, mid-span deflections and crack development forms; finally, numerical simulations were performed to investigate the cracking performances of RAC beams. Through analyzing the experimental results, it is found that the crack development pattern of RAC beams resembles that of natural aggregate concrete beams, while the cracking performance of RAC beams significantly deviates from that of NAC beams. Finally, the correction formulas for the cracking moment calculation of RAC beams are proposed based on the numerical simulation results and verified by data from other researchers, which can be regarded as a correction for the cracking moment calculation formulas in the current code for RAC beams with respect to varied recycled concrete aggregate substitution ratios.

Study on Mechanical Properties of Modified Polyurethane Concrete at Different Temperatures

The objective of the present research was to study the effect of temperature on the mechanical properties, failure mode and uniaxial compression constitutive relationship of a modified polyurethane concrete. A total of 24 cube and 27 prism specimens were fabricated, and the uniformity of the polyurethane concrete was checked. The compressive test, splitting tensile test and static uniaxial compression test were carried out at 0, 15, 40 and 60 °C. The failure mode, cube compressive strength, splitting tensile strength, axial compressive strength, elastic modulus and the compressive stress–strain curves of the modified polyurethane concrete were obtained. Based on the experimental results, a uniaxial compression constitutive model of the modified polyurethane concrete considering temperature characteristics was proposed. The results show that the elastic modulus, cubic compressive strength, splitting tensile strength and axial compressive strength of the modified polyurethane concrete decrease with the increase of temperature, and the peak strain and ultimate strain increase significantly. When the temperature rises from 0 to 60 °C, the cubic compressive strength, splitting tensile strength and axial compressive strength are decreased by 67.1%, 66.4% and 73.3%, respectively. The calculation results of the proposed constitutive model are in good agreement with the test results. The results are expected to guide the application of the modified polyurethane concrete in bridge deck pavement.

Experimental study on surface wrapping strengthening of EPS particles and its concrete performance

Abstract Expanded polystyrene (EPS) concrete is a low-carbon green building material, which has the properties of thermal insulation, but its strength is not high at present. To improve the strength of EPS concrete, EPS particles were wrapped on the surface by magnesium phosphate cement, ultra-high performance concrete, and waterborne polyurethane, they were used to make concrete after aging, and then the strength and microproperties of concrete were tested. The test results show that the wrapping material form a shell structure on the surface of EPS particles; the hydrophilic property of the wrapped EPS particles and the uniformity of the concrete have been significantly improved; the contact between the wrapped EPS particles and the cement base has become more closer; the cube compressive strength of concrete is increased by 80–110%, the flexural strength of concrete is increased by 40–90%. The research results of this study are of great significance for EPS concrete used as structural material and fabricated lightweight wallboard.