Menu
Also the use of quarry dust as the fine aggregate decreases the cost of concrete production in terms of the partial replacement for natural river sand Design mix of M25grade concrete with
Get Price
The concrete strength improves up to a replacement level of 10% by mass of cement on account of densification created by the finer WMP and un hydrated cement particles which act as hard inclusions Beyond 10% the concrete strength starts declining due to insufficient quantity of cement matrix binding the WMP particles Schmidt rebound
Get Price
The influence of the partial / full replacement of fine aggregates with granulated blast furnace slag GBS and its effect on mechanical strength and durability properties acid attack of high performance concrete of grade M60 had been studied in the present work The high performance concrete mix had been designed in such a way that one group with natural sand and another with manufactured
Get Price
However little research work has been carried out employing those types of aggregates in recycled aggregate concrete RAC production In this research work mixed and ceramic FRA in partial replacement of 10 20 35 and 50% of natural fine aggregates were used in order to verify their applicability in RAC manufacturing All the concretes were
Get Price
requirement is selected Specific gravity tests are carried out for fine and coarse aggregate The various materials used were tested as per Indian standard specifications On the basis of the experimental studies carried out on M30 grade concrete as partial replacement of coarse aggregates with sea shells and coconut shells the
Get Price
aggregate Fine aggregate is added to concrete to assist workability and to bring uniformity in mixture Usually the natural river sand is used as fine aggregate Coarse aggregate The coarse aggregate for the works should be river gravel or crushed stone Angular shape aggregate of is 20mm and below It should be hard strong dense durable
Get Price
This is improved by using admixture to some extent but lower density and enhanced ductility are the same and there was a slight increase in flexural strength without admixture The overall results show that it is possible to use recycled rubber tires in concrete tile production as a partial replacement for coarse aggregates Nevertheless the
Get Price
By substituting fly ash for cement 40% of the cement was eliminated Copper slag has been substituted for fine aggregate in various quantities ranging from 10% to 50% in the concrete compositions In total six concrete mix proportions have been produced for which the parameters like water absorption and chloride permeability were evaluated
Get Price
In this study marble stone dust MSD and wood saw dust WSD were used as partial replacement for cement and fine aggregate in concrete mix respectively The test samples were prepared by replacing 0% 2% 4% and 6% of cement and fines by weight of concrete with MSD and WSD The combined effect of MSD and WSD on the workability compressive
Get Price
An attempt is made with Iron Ore Tailings as a partial replacement of fine aggregate in the concrete The main aim of this section is to present an overview of research work carried out by various researchers in the field of Iron Ore Tailings and replacement of fine aggregates Sujing Zhao et al 2024 [10] investigated that 100%
Get Price
The mix ratio adopted was 1 2 3 for cement fine aggregate and coarse aggregate with a constant free water to cement ratio w/c of Curing method was by immersion and effect on the mechanical properties compressive and tensile strengths were determined at 7 and 28 days of curing It was observed that the compressive tensile strength workability and concrete density reduce as PKS
Get Price
From this perspective our studies on recycled coarse aggregate as a partial or full replacement of coarse aggregate in concrete production using fine aggregate of FM A total of 40 cylinders of diameter 150 mm and 300 mm height with different percentages by weight of fresh coarse aggregate to recycled coarse aggregate as coarse aggregate in the order 100 0 90 10 80 20 70 30 60 40 50
Get Price
Dec 1 2021An attempt has been made to examine the effectiveness of cupola slag as a partial substitute to fine aggregates on the mechanical and durability properties of concrete Fine aggregate was replaced by cupola slag at five different percentages 0% 10% 20% 30% and 40% In addition the w/c ratios varied were and at a fixed
Get Price
The objective of the proposed study is to evaluate bottom ash as a partial or total replacement of the fine and coarse aggregate in concrete This program will characterize and evaluate available bottom ash sources as potential replacement of both the fine sand and coarse stone natural aggregates traditionally used in the construction of
Get Price
Fly ash is another materials that has been used in partial replacement of cements in concrete and cement mortars Jo et al showed that fly ash based lightweightartificial aggregate is 2024 suitable for the production of concrete having a compressive strength of 29 N/mm2 Cold bonded fly ash was also found to be suitable for the production of concrete with a compressive strength up to 30 N
Get Price
Partial Replacement of Sand with Quarry Dust in Concrete Chandana Sukesh Katakam Bala Krishna Lakshmi Sai Teja Rao Abstract The reduction in the sources of natural sand and the requirement for reduction in the cost of concrete production has resulted in the increased need to identify substitute material to sand as fine aggregates in the production of concretes
Get Price
been used as partial replacement of fine aggregate in concrete Ceramic waste CW was used as fine aggregate in the varying ratios of 10 15 and 25% as the total weight of fine aggregate In all 4 mixes CM Control Mix CW10% CW15% and CW25% of M25 grade of concrete were prepared Keywords Ceramic Waste Fine Aggregate Cement Natural
Get Price
can be reduced or eliminated by partial to total replacement of OPC clinker replacement and use renewable fuels for its production Barcelo et al 2024 Several kinds of research on the partial replacement of OPC with supplementary cementitious materials SCMs have ensued over the years And the use of SCMs as partial 2 enhance the strength and durability of the concrete Thomas 2024
Get Price
concrete mixture recycled aggregate concrete may also be manufactured by using a water reducing admixture in order to lower both water and cement dosage or even by adding fly ash as a partial fine aggregate replacement and by using a superplasticizer to achieve the required workability [Corinaldesi Moriconi 2024]
Get Price
In the present study experiments were carried out to study the gradation of aggregates workability and compressive strength of concrete made using quarry dust as a replacement for fine aggregate at 0 25 50 75 and 100% A nominal mix ratio of 1 2 4 and a water cement ratio of were adopted for this work and mix compositions were
Get Price
Mechanical and Durability Properties of Concrete Made with Used Foundry Sand as Fine Aggregate ne aggregate in concrete production A rising demand for construction material has led to the overexploitation of river sand and this overexploitation has led to harmful con sequences like increase in river bed depth lowering of the water table and intrusion of salinity into the river In addi
Get Price
Fine aggregates will be replaced by waste glass powder as 5% 10% 15% 20% and 40% weight for M 20 mix The concrete specimens will be tested for compressive strength at 4 7 and 28 days respectively and also the results obtained will be compared with those of traditional concrete
Get Price
aggregate The particle size distribution fine aggregate was shown in Figure 1 The physical properties of fine aggregate and coarse aggregate was tabulated in Tables 1 and 2 respectively Coal bottom ash obtained from Hindustan Newsprint Limited Kottayyam Kerala India was used as partial replacement of fine aggregates The coal bottom ash
Get Price
Cement is the most important ingredient in concrete which acts as a binding material It is evaluated that cement is the second largest industrial source of CO2 on earth This demands a partial or full replacement of cement by an environment friendly material In this research industrial waste slag from a local Steel Mill namely Mangla Metals
Get Price
When CCA and WSA were used up to 6% as partial fine aggregate replacements it was found that the compressive strength of CCA mixed concrete was enhanced by up to 40% in comparison with WSA mixed concrete at the age of 365 days If we look CCA used as a partial fine aggregate replacement then the overall development factors and performance of
Get Price
In concrete production it could compared with the standard values as per IS specifications As be used as a partial or full replacement of natural sand per the data obtained concrete does not give adequate Besides the utilization of quarry waste which itself is a workability with the increase of quarry dust as fine waste material will reduce the cost of concrete production aggregate
Get Price
The purpose of this paper is to examine the use of a waste marine sea shell product incorporated into a concrete mix as an aggregate replacement Utilising shells reduces the storage of shell waste also reducing the need for quarried aggregate and has potential benefits of adding a different material to a design mix concrete mix design for improved performance The test methods used
Get Price
Concrete mix design is the process of selecting suitable concrete materials and deter mining their relative proportions in order to produce a concrete with the required strength durability and workability In this study a 1 mix ratio of cement fine aggregate and coarse aggregate was used with a water binder ratio of Table 5
Get Price
Full PDF Package Download DEMOLISHED CONCRETE in concrete production 2 MATERIAL USED Cement Ordinary Portland cement grade 43 is used for this experimental study for chemical properties it is taken from IS 8112 1989 and physical properties are in following table 1 Table 1 Physical properties of cement Fineness m2/kg Specific gravity Density kg/m3 Fine Aggregates
Get Price
concrete with partial and total replacement of conventional sand with Mill scale and the study is made with systematic approach with sequential steps A conventional M20 grade Cement is prepared In the mix sand replacement by weight of 0% 20% 40% 60% 80% and 100% with Mill scale was considered Concrete with these six
Get Price