Sugarcane Ash Research Articles

Experimental Investigation on Bagasse ash Based Geopolymer Concrete Subjected to Elevated Tempreture

Geopolymer in recent years is being deemed as a promising alternative to cement concrete, which has remained as backbone of the construction industry. Despite GPC having potential capability of reducing carbon footprint, still many of its characteristics and mechanism to be investigated. The present study represents the utilization of bagasse ash in the production of geopolymer concrete. In order to reduce the ecological imbalance by the emission of CO2 from cement production an attempt has been made to investigate the feasibility of utilizing sugar cane ash as one of the candidate in polymer concrete by maintaining different molar concentration of sodium based alkali activated solutions. Geopolymer concrete has been casted and assessed for the fresh and harden properties. In the present work sugar cane bagasse ash replacement was done partially from 10% to 100% to determine workability and strength parameters. The objective of the work is to find the maximum extent of bagasse ash by reducing GGBS & also to check the suitable silica content. GGBS has been used as a binder materials & to reduce the limitations of GPC with respect to workability, Aura mix super plasticizer has been used. While comparing the results with regular concrete after 28days sun curing shows the positive effect with maximum 30% bagasse ash further increment results in decrease in harden properties such as ultimate compressive strength, flexural strength and split tensile strength. specimens were subjected to the elevated temperature to study the properties of geopolymer concrete such as residual strength, mass loss.

A Study based upon the Mechanical and Durable Properties of Concrete using Sugarcane Ash, Marble waste Powder and Recycled Aggregate as Partial Replacement of OPC, Fine Aggregate and Coarse Aggregate Respectively

A Study based upon the Mechanical and Durable Properties of Concrete using Sugarcane Ash, Marble waste Powder and Recycled Aggregate as Partial Replacement of OPC, Fine Aggregate and Coarse Aggregate Respectively - written by Pardeep Singh , Vikas Khandelwal published on 2020/09/24 download full article with reference data and citations

The Effect of Beach Sands to Replacement of Fine Aggregate with Addition Filler of Ash Cane on the Asphalt Mixture on Marshall Characteristics

The purpose of this research is to know the effect of beach sand as a substitute for river sand in a mixture of concrete asphalt against the characteristic values of the marshall and to determine the effect of adding sugarcane ash filler with the percentage of ash filler 0%, 5%, 10%, 15% on the concrete asphalt mixture against the characteristic values of the marshall. This research is an experimental study using fillers in the form of sugarcane ash filler with varying levels of variation in the amount of 0%, 5%, 10%, 15%. The specimens using AC-BC mixture was then tested using the Marshall method values of stability, density, flow, VIM, VMA, VFA, MQ. The results of this study indicate that the addition of sugarcane ash filler and the use of beach sand as a substitute for river sand affect the value of the characteristics of the marshall. The more filler levels used in the asphalt mixture, the greater the value of stability and MQ. While the flow value, density, VIM, VMA, VFA are getting smaller. Other factors that influence marshall characteristic values are asphalt content used, aggregate gradation, temperature in compaction, mix quality, and the process of mixing asphalt.

Mitigation of silica-rich wastes: An alternative to the synthesis eco-friendly silica-based mesoporous materials

The synthesis of nano-architectured mesoporous materials is of great importance for the sciences of multifunctional materials, since the textural and structural features of mesoporous silicas allows its application in the most different areas of technological knowledge. In view of growing interest of the scientific community in the use of silica-based mesoporous materials, as well as the environmental concern of obtaining advanced materials through increasingly cleaner, low-cost, and eco-friendly processes, this review aims to give an overview in the literature of main alternative silica sources that have been used to synthetize the silica-based mesoporous arrays. Also, we present what are the main applications of these mesoparticles. We can highlight that the main mesoporous materials studied in the literature are those of the M41S, SBA- n , FDU- n , and KIT- n families, which presented well-structured silica-based mesoporous materials with different pore geometries and architectures. Thus, allowing the application of these architectured materials in different scientific areas. The synthesis of silicon-based mesoporous materials has been increasingly sought from the use of low-cost and eco-friendly silica sources from the reuse of industrial wastes, in an attempt to minimize the possible impacts on the environment and human health of inadequate disposal of these wastes. Based on our literature review, the main alternative silica sources that are being used for the synthesis of silica-based mesoporous materials are rice hush ash, wheat husk ash, palm oil fuel ash, Miscanthus ash, e-waste, coal ash, reed ash, sedge ash, Carex riparia, sugarcane ash, bamboo leaf ash, natural clay, ore tailing, and others. Sustainable and renewable silica sources used in the preparation of the eco-friendly silica-based mesoporous materials and their environmental applications. • Sustainable silica sources are used in the preparation of mesoporous materials. • Silica-based mesoporous arrays have multifunctional properties. • Eco-friendly mesoporous arrays are highly efficient for use in environmental sciences. • Nanostructured mesoporous materials have different pore geometries and architectures. • The use of low-cost and eco-friendly silica sources is of environmental importance.

Improvement of Sub-Base of Roads by Chemical Admixtures and Organic Materials

One of the aspects of increase of earlier damage and failure of traffic load, especially in clayey regions, is the deficiency of pavement subgrade. To prevent such damage, strengthening of the pavement by improving the subgrade layer is essential. Many investigators have carried out research on the subgrade layer, especially when containing clay particles, using several types of additives (stabilizers). Soil Stabilization is a method of improving the engineering properties of soil and therefore making it more stable. Generally, stabilization includes pre-consolidation, compaction and numerous other similar methods. However, stabilization is usually related to the processes which modify the soil composition itself for enhancement of its properties. Soil stabilization of pavements is usually designed based on the assumption that specified levels of quality will be achieved for each soil layer in the pavement system. Each layer must resist shearing within the layer, avoid excessive elastic deformations that would result in fatigue cracking within the layer or in overlying layers, and prevent excessive permanent deformation through densification. Engineers are responsible for selecting or specifying the correct stabilizing method, technique, and quantity of material required. Usually, the technology provides an alternative provision structural solution to a practical problem. The simplest stabilization processes are compaction and drainage. The other process is by improving gradation of particle size and further improvement can be achieved by adding binders to the weak soils. This study showed that lime activated by sodium chloride in combination with sugar cane ash could be effectively used to improve soft clay with low soaked CBR value and high plasticity. Therefore, from the environmental point of view, it was recommended that sugar cane ash can partially replace lime in clay stabilization to form material with cementitous properties

Fast, efficient and clean adsorption of bisphenol-A using renewable mesoporous silica nanoparticles from sugarcane waste ash.

Even with all the biological problems associated with bisphenol-A (BPA), this chemical is still being widely used, especially in thermal paper receipts. In this study, renewable mesoporous silica nanoparticles (MSN), obtained from sugarcane ash, functionalized with hexadecyltrimethylammonium (CTAB) were applied as an adsorbent in the removal of BPA from the aqueous solution. The versatility of this material and its BPA adsorption capacity were tested at different pH values, being practically constant at pH between 4 and 9, with a slight increase in pH 10 and a greater increase in pH 11. The removal time evaluation indicates a very fast adsorption process, removing almost 90% of BPA in the first 20 min of contact. The kinetic model indicates a monolayer formation of BPA molecules on the MSN-CTAB surface. The maximum adsorption capacity (Qmax) was 155.78 mg g−1, one of the highest found in literature, and the highest for material from a renewable source.

“Light transmitting concrete by using optical fiber and partial replacement of sugar cane ash”

“Light transmitting concrete by using optical fiber and partial replacement of sugar cane ash”

Durability of Concrete Structures with Sugar Cane Bagasse Ash

The environmental impact of cement production increased significantly in the previous years. For each ton of cement produced, approximately a ton of carbon dioxide is emitted in decarbonation (50%), clinker furnace combustion (40%), raw materials transport (5%), and electricity (5%). Green strategies have been advanced to reduce it, adding natural or waste materials to substitute components or reinforce the mortar, like fibers or ashes. Sugar cane bagasse ash is a by‐product generated from sugar boilers and alcohol factories with capacity to be used in concrete production. Composed mainly of silica, it can be used as mortar and concrete mineral admixture, providing great economic and environmental advantages, particularly in regions with sugar culture and industrial transformation like Brazil. In this research, a study of partial substitution of Portland cement by sugar cane bagasse (SCB) is analyzed, in order to reduce clinker in concrete volume, responsible for high emission of CO2 to the atmosphere. An experimental campaign with cementitious pastes was carried out to evaluate the durability properties’ changes due to SCB ash use. Samples containing 15% of sugarcane bagasse ash unveiled good results in terms of durability, indicating that concrete structure with sugar cane ash research is a new and important scientific topic to be highlighted.

Utilization of industrial and agricultural wastes for productions of sustainable roller compacted concrete pavement mixes containing reclaimed asphalt pavement aggregates

Asphalt pavement recycling has become a common practice across the globe and has been successfully employed in construction of new pavements. While several studies considered utilization of reclaimed asphalt pavement (RAP) aggregates for flexible and rigid pavements, very few attempted its possibility for roller compacted concrete pavements (RCCP). Additionally, studies on the possibility of enhancing the proportion of RAP for RCCP are very scanty. The present study is an attempt to increase the potential of RCCP mixes containing 50% RAP (dust contaminated & stiffened asphalt coated: 50RAP via including various industrial and agricultural wastes such as Silica Fume, Fly ash, and Sugarcane ash as partial replacement of conventional cement. It was observed that the inclusion of the stated admixtures had an insignificant effect on the density of the fresh RCCP mixes, however, increased the moisture demand considerably. In fact, the results firmly indicated the potential of silica fume for RAP-RCCP blends, as, it not only enhanced the physical and mechanical properties, but found to improve the durability of RCCP mixes considerably. Also, utilization of silica fume was found to be economical & environmentally friendly amongst all wastes: with reduced initial construction cost & CO2 emissions by up to 8.4% & 9.7%. As far as the other industrial wastes are concerned, 15% fly ash could also be utilized for producing sustainable RCCP mixes, whereas, higher dosage of fly ash (30%) and sugarcane ash (10 & 15%) may be employed as base layer material of conventional concrete pavements.

Potential reduction of greenhouse gas emission through the use of sugarcane ash in cement-based industries: A case in the Philippines

Abstract Sugarcane ashes are wastes generated during the combustion of sugarcane residues in cogeneration plants. With sugarcane being the Philippine's top produced crop and a renewable energy resource, generation of sugarcane ash is inevitable. The aims of this study are to assess the potential amount of sugarcane ashes the Philippines can generate, and evaluate the potential greenhouse gas reduction in the utilization of ashes as partial cement replacement in mortar and concrete. The annual potential ash generation could reach to ∼366 kt, ∼125 kt is sugarcane bagasse ash and ∼241 kt is sugarcane leaves ash. Only 68% (∼85 kt) of the sugarcane bagasse ash and 4% (∼9 kt) of the sugarcane leaves ash could be generated by existing cogeneration plants. The utilization of these ashes can reduce the emissions by ∼273 kt CO2-eq annually, while addressing its disposal issues. With the unique archipelagic situation of the Philippines, the distribution of sugarcane ash was investigated, considering the transport emissions when later adopted as raw material in formulating mortar and concrete. Critical distances for transport of sugarcane ash without incurring additional emissions were 1,851 to 4,770 km by land and 5,500 km by sea due to their different corresponding emission factors. The return trip of a given transport vehicle was accounted in the determination of the critical distance to provide realistic estimates. This study provides a quantitative basis for the use of renewable biomass-based resource, like sugarcane ash, to further reduce greenhouse gas emissions in the Philippines.

Evaluation of Variation in Properties of Concrete By Sugarcane Ash Additive

Evaluation of Variation in Properties of Concrete By Sugarcane Ash Additive

Fluoride Adsorption by Calcium Carbonate, Activated Alumina and Activated Sugarcane Ash

The aim of this research work is to develop a novel cost effective strategy for fluoride removal, applicable to rural areas of developing countries. Most of the adsorbent based technologies for fluoride removal work at acidic pH which is not a feasible condition for application in rural areas. This study investigates the feasibility of three low-cost adsorbents (calcium carbonate, activated alumina, and activated sugarcane ash) for the removal of fluoride ions by adsorption using a synthetic fluoride solution (3.0–30.0 ppm). The effects of various process parameters have been investigated by the following batch adsorption technique at 30 ± 1 °C. Fluoride ion adsorption increased with increasing adsorbent dose for all the adsorbents. Adsorption of fluoride increased with increasing contact time and reached equilibrium at 100 min. Adsorption data were fitted with the Langmuir isotherms. The maximum fluoride adsorptions occurred as 12.5 mg/g, 1.2 mg/g, 10.99 mg/g for calcium carbonate, activated alumina and activated sugarcane ash, respectively. Further, fluoride adsorption of all the studied adsorbents follows pseudo-second-order kinetics (R2 0.99). Intra-particle diffusion model revealed that activated carbon of sugarcane ash is more effective in adsorption of fluoride. Thermodynamic study showed spontaneous nature and feasibility of the adsorption process with negative enthalpy (∆H0) value also supported the exothermic nature. These results indicate that activated carbon of sugarcane ash can be used as an effective, low-cost adsorbent to remove fluoride compared to calcium carbonate and activated alumina.

Carbonization on combustion and biodegradation of agricultural waste as a possible source of silica.

Agricultural waste being the major solid waste in the environment, the study has explored and identified the presence of minerals especially silica in the agricultural waste like sugarcane bagasse ash and rice husk ash by carbonization on combustion at different thermal conditions and biodegradation. Presence of silica in the ash samples has been well characterized by the XRD, FT-IR, EDX, SEM and N2 sorption techniques. Presence of crystal phases of silica like quartz and cristoballite is well indexed by the X-ray diffraction peaks that appeared at 2θ = 27, 40 and 60 which is further confirmed by the peaks at 1100, 820 and 620 cm(-1) of FT-IR. The elemental composition of the silica in ash is determined by EDX analysis. The exothermic reaction and the mass loss observed in the TG/DTG at the transient temperature of 840-850 °C has confirmed the presence of the α-quartz. SEM micrograph has also supported the presence of silica and has revealed the various crystal shapes that were present in the sugarcane and husk ash. The study has clearly revealed that the silica content has increased with the increase in temperature and refinement of the combustion condition to a maximum of 18.7-52 % and on biodegradation to about 48.3-92.4 %.

Rio 2016 sustainable construction commitments lead to new developments in recycled aggregate concrete

The Brazilian construction industry is committed to delivering the venues and infrastructure of the Rio 2016 Olympic and Paralympic Games with zero increase in carbon dioxide emissions, reduced consumption of raw materials, increased use of renewable materials and 100% local recycling of construction waste. This in turn has led to significant research and development into using cement replacements – particularly sugar-cane ash from local ethanol production – and recycled aggregates in concrete production. This paper reports on the initial and promising results for ecological concrete mixes using up to 20% sugar-cane ash and 50% cleaned recycled aggregates from demolition waste.

Management of agricultural biomass wastes: Preliminary study on characterization and valorisation in clay matrix bricks

In this work the feasibility of using woody agricultural biomass wastes as grapes and cherries seeds, sawdust, as pore forming agent, and sugar cane ash, as silica precursor, in bricks, were reported.Sawdust and grapes and cherries seeds, thanks to their organic substances content, during their combustion, bring an energetic support in the bricks firing phase and act as pore forming agent. Usually the addition of this kind of waste is limited to 10wt.% in order to reach an equilibrium between positive (weight and shrinkage decrease and porosity increase) and negative (increase of water absorption and mechanical resistance decrease) effects. The results show that grapes and cherries seeds, added in a percentage of 5wt.% to a brick formulation, have better influence with respect to the sawdust, maintaining the mechanical properties of the fired brick (950°C), showing modulus of rupture around 21–23MPa with a weight reduction of 3–10% (respect to the standard one). Regarding the sugar cane ash, the addition of 5wt.% improves the mechanical properties (modulus of rupture around 27MPa) and no weight decrease is observed. These results confirmed the role played by this kind of agricultural waste, which thanks to its high silica content (61wt.%) is capable to demonstrate a filler and plasticity reducing effect on the brick bodies. Tests carried out highlighted that the addition of these by-products (5wt.%) do not change negatively the main technological properties measured (water absorption, linear shrinkage, flexural resistance, etc.) and permit to hypothesize their use to obtain bricks with both insulating and higher mechanical properties using a pore agent forming or silica carrier alternative raw materials, respectively.

Chemical properties of an oxisol under organic management as influenced by application of sugarcane bagasse ash

There are large areas of Oxisols in South America, including Brazil, with low fertility and acidity. To improve crop yields on these Oxisols, liming and fertilization is an essential practice. However, besides the high cost of fertilizers, chemical fertilizers cannot be used in organic production systems, except insoluble sources. Ash is one of the alternative source of supplying macro and micronutrients. A field experiment was conducted, in a completely randomized block design in a factorial arrangement (three sources of ash x four rates) resulting on 12 treatments, to evaluate the effect of source and rate of ash application on soil chemical properties. The treatments consisted of three sources (bagasse, bagasse+PJ07-A and bagasse+PJ07-RA) of sugarcane ash applied in four rates as 0; 5; 15 and 30 Mg ha -1 . Results showed that the use of ash significantly improved soil chemical properties such as pH, P, K, Mg, base saturation, K and Mg saturation and significantly reduced soil acidity (H+Al). Depending on the ash source or rate, some of the soil chemical properties were affected, however, the effect of ash source was not so pronounced as compared with ash rate. Ashes application resulted on a soil nutritional condiction enough to guarantee the growth and yield of most annual crops. Ash sources were equally effective in reducing acidity and improving soil fertility under this study condition, while increasing ash rate provides decrease in H+Al content and increase in pH, Mg, P and K.

The surface reactivity and implied toxicity of ash produced from sugarcane burning

Sugarcane combustion generates fine-grained particulate that has the potential to be a respiratory health hazard because of its grain size and composition. In particular, conversion of amorphous silica to crystalline forms during burning may provide a source of toxic particles. In this study, we investigate and evaluate the toxicity of sugarcane ash and bagasse ash formed from commercial sugarcane burning. Experiments to determine the main physicochemical properties of the particles, known to modulate biological responses, were combined with cellular toxicity assays to gain insight into the potential reactions that could occur at the particle-lung interface following inhalation. The specific surface area of the particles ranged from ∼16 to 90 m(2) g(-1) . The samples did not generate hydroxyl- or carbon-centered radicals in cell-free tests. However, all samples were able to 'scavenge' an external source of hydroxyl radicals, which may be indicative of defects on the particle surfaces that may interfere with cellular processes. The bioavailable iron on the particle surfaces was low (2-3 μmol m(-2) ), indicating a low propensity for iron-catalyzed radical generation. The sample surfaces were all hydrophilic and slightly acidic, which may be due to the presence of oxygenated (functional) groups. The ability to cause oxidative stress and membrane rupture in red blood cells (hemolysis) was found to be low, indicating that the samples are not toxic by the mechanisms tested. Cytotoxicity of sugarcane ash was observed, by measuring lactate dehydrogenase release, after incubation of relatively high concentrations of ash with murine alveolar macrophage cells. All samples induced nitrogen oxide release (although only at very high concentrations) and reactive oxygen species generation (although the bagasse samples were less potent than the sugarcane ash). However, the samples induced significantly lower cytotoxic effects and nitrogen oxide generation when compared with the positive control.

Comparison of ASTM C311 Strength Activity Index Testing versus Testing Based on Constant Volumetric Proportions

Abstract Currently, the (pozzolanic) strength activity indices of fly ashes and natural pozzolans are typically evaluated using the procedures outlined in ASTM C311 [“Standard Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete,” Annual Book of ASTM Standards, ASTM International, West Conshohocken, PA, 2007]. In this test, the 7 and 28 d compressive strengths of mortar cubes with a 20 % mass replacement of cement by pozzolan are compared to those of a control without pozzolan, at constant flow conditions. In its current form, this procedure confounds two other properties of the pozzolan with its strength activity, namely its density and its water-reducing/increasing capabilities. In this study, the current C311 testing procedure is evaluated against an alternative in which the 20 % fly ash replacement for cement is performed on a volumetric basis and the volume fractions of water and sand are held constant, which should provide a true evaluation of the strength activity index of the pozzolan, free of these confounding influences. Class C and Class F fly ashes, a natural pozzolan, and a sugar cane ash are evaluated using both approaches, with some significant differences being noted. For a subset of the materials, the strength measurements are complemented by measurements of isothermal calorimetry on the mortars to an age of 7 d. For the constant volumetric proportions approach, a good correlation is exhibited between the cumulative heat release of the mortar at 7 d and the measured 7 d strength, suggesting the potential to evaluate 7 d pozzolanic activity via calorimetric measurements on much smaller specimens.

Corrosion Behaviour of Boiler Steel EN-24 in Sugarcane Ash

Corrosion Behaviour of Boiler Steel EN-24 in Sugarcane Ash