Recycled aggregate as coarse aggregate replacement in. Replacement of coarse aggregate by demolished brick. The effects of aggregate type, size, and content on the behavior of normal and highstrength concrete, and the relationships between compressive strength, flexural strength, and fracture energy are discussed. Suraya hani adnan1, ismail abdul rahman1, hamidah mohd saman2. Influence of recycled coarse aggregate replacement percentage on fatigue performance of recycled aggregate concrete quanmin peng a,b. The properties of the recycled aggregate and of the new concrete made from it, with nearly 100% of aggregate replacement, were tested. Concrete is a composition of material from coarse granular material such as coarse and fine aggregate mixing in a hard matrix of material that is cemented that fills the space of aggregate particles with an additive and bind them together saidi,2007. Investigation on partial replacement of coarse aggregate. Here the slump test is conducted for control concrete and rubberized concrete by partially replacing coarse aggregate by different percentage of rubber aggregates. Abstractthe major part of construction industry is based on concrete. An experimental program based on two variables proportion of fine aggregates replacement and proportion of coarse aggregates replacement was implemented. Experimental investigation of concrete using coconut shell. The concrete cubes are designed for m30 as per indian standard codes. The corresponding watercement wc ratios used were 0.
The compressive strength of recycled concrete car concrete made using 10% of demolition waste coarse aggregate is almost similar to referral concrete. The partial replacement of coarse aggregate with palm kernel shell which is a waste in concrete can reduce the overall cost of the concrete and therefore construction also. Use of recycled tires as partial replacement of coarse. Coconut shell as partial replacement of coarse aggregate. What are other alternatives for aggregates in concrete. Coarse aggregate may be formed by crushing of stones and fine aggregates. The percentages of replacement will be 0%, 50% and 100%. This paper deals with the possibility of using fresh concrete waste as recycled aggregates in concrete. This civil project focuses on the coarse aggregate in concrete. Partial replacement of coarse aggregate with demolished. Pdf partial replacement of coarse aggregate by waste. The material wassieved and split into two groups of tyre aggregate. Coconut shell as partial replacement for coarse aggregate.
The suitability of recycled plastics as coarse aggregate in concrete and its advantage are discussed here. Study of concrete by using waste plastic bottle caps as. Properties of concrete with coconut shells as aggregate replacement 22 2. Glass was used to replace up to 35% of coarse aggregates in concrete mixes. The use of fractionated reclaimed asphalt pavement frap was investigated as a partial replacement 0%, 20%, 35%, and 50% of virgin coarse aggregate in a ternary blend concrete containing cement, slag, and fly ash. Concrete is prepared with granite fines as a partial replacement of fine aggregate in different proportions namely 10%, 15%, and 20%. Experiments on partial replacement of coconut shell as. Recycled concrete aggregate rca produced from demolished pavements in three geographicallydispersed locations in washington state were used to perform testson aggregate characte ristics, fresh concrete propertiesand hardened concrete properties. Use of recycled tire in concrete for partial aggregate.
The proportions of replacement were 0%, 50%, and 100% by mass of aggregates. Coarse aggregate was then replaced with cs in 10 m2, 15 m3, 20 m4 percentages to study effect of cs replacement. The concrete mixtures incorporate either basalt or crushed limestone, aggregate sizes of 12 mm h in. Rap replacement of fine aggregate at 0, 20, 40, 60, 80 and 100% was used. Performance of waste coconut shell as partial replacement. A total of one hundred and five 105 cubes and beams were cast and tested for. Properties of concrete with recycled concrete aggregate. Aggarwal et al 3 observed that the bottom ash can be replaced as fine aggregate upto 50% without affecting the properties of concrete.
Pdf the possibility of using broken glass as a substitute for coarse aggregate in concrete serves as one of the possible solutions to the. Evaluation of recycled concrete for use as aggregate in. Partial replacement of coarse aggregate by waste ceramic tile in concrete. The full replacement of the natural aggregate with rca results in a. Properties of concrete with coconut shells as aggregate. Pdf partial replacement of coarse aggregate in concrete. Partial replacement of eplastic waste as coarseaggregate. Mix proportions in order to investigate properties of cs concretes, six mixes were employed. To find the alternative of basic materials which are used in construction from past many years. The sieve analysis for fine aggregate expressed a fineness modulus of 2. Typical concrete mixtures are comprised of water, sand, cement and an aggregate of rock. It was found that the replacement of coarse aggregate by waste shabath stone over the concrete had attained the good strength when compared to that of the. The maximum percentage of aggregate replaced by shredded plastic as been determined based on detailed experimental study. Effort towards preserving natural coarse aggregate for future generation and.
The various tests to be conducted on concrete such as compressive strength, split tensile strength and flexural strength. Replacement of recycled coarse aggregates with natural. An experimental study is made on the utilization of ewaste particles as fine and coarse aggregates in concrete with a percentage replacement ranging from 0 %, 20% to 30% i. Effect of waste tyres as partial replacement of fine aggregate in. This study evaluated the use of recycled concrete as coarse aggregate in new concrete pavements. Recycled glass as a partial replacement for fine aggregate. Replacement of coarse aggregate by using naturally. India is the third largest, having cultivation in an area of about 1. Introduction concrete is the most widely used man made construction material in the world and its second only to water as the most utilized substance in the planet. A study of concrete made with fine and coarse aggregates. In concrete the vital and costly material after cement is aggregate. Results of slump test serial no grades of concrete replacement of rubber aggregates in % slump. Experimental investigation was done using m20 mix and. The test and design is as per indian standard codes.
Laboratory investigation of partial replacement of coarse. Strength properties of concrete containing coconut shell. The main issues in sand and gravel mining are the large areas that are. Coconut shell as partial replacement of coarse aggregate in concrete free download as powerpoint presentation.
Control concrete with normal aggregate and binary concrete mixes containing 10, 204, 0, 60, 80 and 100 % coconut by weight of coarse aggregate were produced and cured for 7, 14, 28, 56 and 90 days respectively. Replacement of coarse aggregates with jhamma bricks for. Partial replacement of coarse aggregate in concrete by waste rubber tire. Recycled concrete as aggregate for structural concrete. Select the water content, for the required workability and maximum size of aggregates for aggregates in saturated surface dry condition from table.
There are several reasons for specifying grading limits and nominal maximum aggregate size. Concrete is a mixture of cement, fine aggregate and coarse aggregate, which is mainly derived from natural resources. A project report on behaviour of concrete by partial replacement of coarse aggregate with recycled plastic granules. As all the other variables were kept constant, this research enabled us to determine the influence of the coarse recycled aggregate amount 0%, 50% and 100% on tested concrete properties. By omitting the fine aggregate from the mix so that a large number of interstitial voids present. In this context, our present aims to investigate the optimal use of recycled aggregates and waste tire rubber as coarse aggregate in concrete composite and the. Waste coconut shell as a partial replacement of coarse.
Khaviya1 1department of civil engineering, university college of engineering, dindigu abstractthe global consumption of natural aggregates is high, due to the daybyday innovations and development in construction field. Tyres as partial replacement of fine aggregate in concrete for construction. Expanded polystyrene plays a very unique role in concrete. Coarse aggregate, plastic aggregate, partial replacement, volumetric substitution, grade substitution. Mechanical properties of m 25 grade concrete made with. In rubberized concrete, rubbers were used to replace coarse aggregates and river sand as fine aggregate. Three sample cubes are prepared for m20 grade concrete mix for each case another aim of this paper is to spread. Pdf partial replacement of coarse aggregate with waste glass in. More than 15% of replacement for coarse aggregate is not considerably useful for construction field because of strength decrease. Coarse aggregate 925 935 939 942 946 953 natural fine aggregate 739 6 573 533 493 417 glass fine aggregate 0 108 143 178 211 278 2.
Cost reduction of concrete with respect to increasing percentage replacement of coarse aggregate is shown in table 11. The results demonstrated that up to 50% frap may be feasible in a concrete to meet the illinois. The results of this study indicate both structural and considerable economical effect of using 10% optimum percentage of wg as a partial replacement of coarse aggregate in concrete. Influence of recycled coarse aggregate replacement. Recycled aggregate as coarse aggregate replacement in concrete mixes. Here you will replace the coarse aggregate by burn brick or jhama brick and you will study the effect of salient parameters that affect the properties of jhama class brick based concrete. They observed reduction in compressive strength for all samples that more in coarse aggregate replacement compared to fine aggregate replacement. Increase in cs percentage decreased densities of the concrete. Increasing population, expanding urbanization, climbing way of life due to technological innovations has demanded a huge amount of natural resources in the construction industry, which has resulted in scarcity of resources.
Range of particle sizes found in aggregate for use in concrete. The classification of concrete based on slump values is listed in the table. Sabri faculty of civil engineering and earth resources, universiti malaysia pahang, lebuhraya tun razak, 26300 kuantan, pahang email. Investigation of recycled polyethylene terephthalate pet. The shape of the rubber aggregate was observed to be subangular. Determine the percentage of fine aggregate in total aggregate by absolute volume from table for the concrete using crushed coarse aggregates. Itcan be seen that there is a very considerable loss in strength with respect to the average results of thecontrol mixes.
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