Studies on Partial Replacement of Sand with Flyash in …
In this investigation fly ash is used as sand replacement material. The material mix of proportion 1:1.58:3.2:0.48. Each category comprises of various percentages of sand replacement material in increasing order i.e. 20%, 40%, 60%, 80% and . The workability is maintained constant range for all mixes.
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(PDF) EFFECT OF MILL SCALE AND FLY ASH WASTE ON THE …
This paper investigates the effect of fineness of fly ash on the performance of cement mortar. Fly ash from thermal plant is used as partial substitute for cement. Fly ash is used as received and also processed by grinding. The study involves four replacement levels of fly ash into cement at 10%, 20%, 30% and 40% for each mix design.
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Partial Replacement of Cement by Fly ash in Concrete Mix …
The experimental studies on mortar containing fly ash as a partial replacement of sand by weight as well as by volume were carried out to quantify its utilization. Both the types of pond and bottom fly ash in various ratios were used in preparing cement mortar and their strengths in compression and tension were tested. The use of fly ash in ...
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Mock-up pragmatic study on the impact performance of self …
Using 40 (%) Recycled Concrete Aggregate (RCA) as a replacement for coarse aggregate, along with the addition of 3 (%) Silica Fume (SF) and 20 (%) Fly Ash (FA) to Recycled Aggregate ...
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The Use of Fly Ash as an Aggregate for Foundry Sand Mold …
The results suggest the possibility for using FE fly ash as a replacement for quartz sand up to 20% in green sand applications. To prevent the friability of green sands with high fly ash contents, protective coatings that enhance the surface strength of the sand were found to be the most promising approach and would be recommended. Addition ...
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Effect of Fly Ash as a Replacement of Sand on Glass
In the specific gravity test, the smallest value was 1,156 kg / m3 resulting from a variation of 50% ed and 0% substitution of fly ash for cement, while the largest weight was 1,670 kg / m3 ...
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Use of fly ash as partial replacement of sand in concrete
Orlik dam on the Vltava river in the Czech Republic is a straight concrete dam constructed in 1956-66. Three types of concrete were used in the construction: B80 core concrete with fly ash, B170 ...
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An Alternative Approach to use Marble Powder & Fly …
The slump of blended mixes is increased up to 10% replacement of Natural Sand by Fly Ash & Marble Power and after that it will decrease. The slump was highly dependent on the amount of admixture added in the mix. The slump of M-25 control mix is 110mm & that of M-30 mix is 105mm.
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Studies on Partial Replacement of Sand with Flyash in …
Concrete containing fly ash as partial to complete replacement of fine aggregate will improve its strength on long-term basis. In this investigation fly ash is used as sand replacement …
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Comparison of environmental impacts of fly ash and slag as …
Fly ash and slag are among the most used wastes as supplementary cementitious materials (SCM) for partially replacing cement in concrete. Globally, these by-products are generated at a substantial scale, with fly ash production ranging from 900 to 1000 million tonnes and slag production from 140 to 330 million tonnes annually [15, 48].Herath et al. [22] reported …
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Investigation of coal bottom ash and fly ash in concrete as replacement
DOI: 10.1016/J.CONBUILDMAT.2016.04.080 Corpus ID: 138270234; Investigation of coal bottom ash and fly ash in concrete as replacement for sand and cement @article ...
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(PDF) Study of Utilization of Fly Ash as a Partial Replacement …
The experimental studies on mortar containing fly ash as a partial replacement of sand by weight as well as by volume were carried out to quantify its utilization. Both the types of pond and bottom fly ash in various ratios were used in preparing cement mortar and their strengths in compression and tension were tested. The use of fly ash in ...
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REPLACEMENT OF SAND WITH FLY ASH
Replacement of sand with fly ash, slump test, compression test. I.INTRODUCTION About100 MT fly ash is generated in India, every year from thermal power plants . To satisfy the growing need for power, more and more Thermal Power plants are required to be set up. This would add nearly double amount of
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Fly ash as a Fine Aggregate Replacement in …
Excessive utilization of river sand as fine aggregates in building construction aggravates environmental degradation and urges the need for alternate source in the context of sustainable...
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Recycling of Used Foundry Sand and Fly Ash in Concrete as …
The current study aims to recycle industry waste, such as used foundry sand and fly ash, by adding it into concrete as a partial replacement for natural fine sand and cement mass. This attempt may help to alleviate the natural sand scarcity issue, to conserve the ecosystem, to solve the issue of waste disposal and greenhouse emissions and ...
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Use of Plastic Fibers in Concrete with Partial Replacement of Sand …
The experiment involves the study and the effect of partially replacement of cement by fly ash and iron slag on the strength of design mix. Seven different type of mix designs are prepared with ...
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Effect of Fly ash as a Partial Replacement of Cement on …
Mix-1 was 36.7 MPa. consequently, when cement content was substituted by 10% fly ash the compressive strength was 39.3 MPa augmented about 7.08%. while, for Fly ash Mix -20 and Fly ash Mix -30, when cement content was substituted by 20% and 30% fly ash the compressive strength was 31.3 MPa and 29.4 MPa reduced about 14.71% and 19.89% respectively.
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Fly ash as a Fine Aggregate Replacement in Concrete Building Blocks
Concrete with fly ash as fine aggregate (CFA) indicates that in the process of concrete production, a certain amount of sand is substituted with fly ash, whereas the content of cement remains ...
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Fly-ash and GGBS based geo-polymer concrete with granite …
The inference of the work is concluded that Fly ash, GGBS with GP as partial replacement to M Sand shall be used for construction application where the early gain of strength is recommended. Nevertheless, more studies have to be carried out for further conclusions in applications related to mixing at site, transportation and placement and ...
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Effect of Fly Ash as a Partial Replacement for Sand on Sulfate
This study investigates the influence of fly ash as a partial replacing sand material on the sulfate resistance of mortar. Fly ash replacement are 0%, 10%, and 20% by volume of …
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A Study on the Effect of Inclusion of Fly Ash as Partial …
A:Fly ash: Fly ash is generally obtained from thermal power plants stored at coal power plants or placed at land fills obtained after the combustion of coal. Fly ash was generally released into the atmosphere, but pollution control board mandated in recent decades that it should be captured prior to release.
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Utilization of fly ash as partial sand replacement in oil palm …
The finding shows that the workability of the OPS LWAC decreases when more fly ash are used as sand replacement. It was found that adding of 10% fly ash as sand …
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Effects of waste glass as a sand replacement on the strength and
This study incorporates fine waste glass (GS) as a replacement for natural sand (NS) in fly ash (FA) and/or ground granulated blast furnace slag (GGBS) based alkali activated mortar (AAm). Tests were conducted on the AAm to determine the mechanical properties, water absorption, apparent porosity and the durability based on its resistance to Na ...
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Feasibility Study of Fly Ash as a Replacement for Fine
replacement of natural sand by fly ash is about 30% as compared to reference mix (0% replacement). 3. It is observed that the residual tensile strength of concrete when subjected to elevated temperature of 200°C for 4 hours, is higher at 40% replacement of natural sand by fly ash. After 40% replacement the tensile strength decreases.
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Experimental investigation on fly ash as sand replacement …
So, untreated desert sand usually doesn't meet the technical requirements to be used as a pavement subgrade [11]. Desert sand is becoming more popular as a building material because it makes mortar stronger both physically and chemically [12]. Desert sand concrete (DSC) has the same level of strength as regular concrete [13], [14], [15].
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Impact of replacement of natural river sand with geopolymer fly ash
Though the usage of fly ash as a replacement to river sand have many advantages on concrete properties, it can only be used partially. Therefore the objective of the current research is to convert fly ash into artificial sand and check its viability as the complete replacement to the river sand in concrete. To achieve this, geopolymerisation of ...
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(PDF) On Effects of Fly Ash as a Partial Replacement of Cement on
The concrete specimens were cast by partially replacing cement by fly ash, and NCA was replaced by 30% of RCA Twenty % replacement of cement by fly ash gave optimum results for compressive ...
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Applicability and chemical mechanism of lightweight cement …
In recent years, using fly ash to replace part of the cement in cement composites is always the research focus of engineers, such as Wang et al. [22] believed that the mixture of fly ash and cement was an economical and sustainable sludge stabilized material, and the fly ash and cement stabilized sludge had superior long-term strength and durability; Rivera et al. [23] …
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Influence of Cement Replacement with Fly Ash and Ground Sand …
Influence of Cement Replacement with Fly Ash and Ground Sand with Different Fineness on Alkali-Silica Reaction of Mortar. ... Although, the replacement of OPC by fly ash can reduce the expansion due to ASR, other factors are still not clear, such as the filler effect and the effects of the fineness of the materials. Therefore, the knowledge ...
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Palm Oil Fuel Ash and Fly Ash for a Partial Replacement of …
Investigation of Coal Bottom Ash and Fly Ash in Concrete As Replacement for Sand and Cement. Construction and Building Materials, 116; 15–24 Rajak, M. A. A., Z. A. Majid, and M. Ismail (2023). Hydration of Hardened Cement Paste Incorporates Nano-Palm Oil Fuel Ash at Later Age: The Microstructure Studies. matrix, 6; 7
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