The suitability of recycled plastics as coarse aggregate in concrete and its advantages are discussed here. In this project, Plastic Coarse Aggregates (PCA) and steel fibers were used as replacement of Natural Coarse aggregate by different percentage of plastic aggregate for making concrete of M-25 grade, with w/c ratio 0.48.
A concrete mixture was prepared with dimensions of approximately 100 mm × 100 mm × 100 mm. The cement was Type I P⋅O 42.5, ordinary Portland cement (Huaxin Cement Co., Ltd., Ezhou, China), with a specific gravity of 3.15 and a Blaine fineness of 4500 cm 2 /g. The fine and coarse aggregates were provided by a local construction …
This paper reports the findings on an experimental investigation of the effect of partial replacement of coarse aggregate with ceramic waste on strength properties of concrete. Compressive strength tests were conducted using 150x150x150mm cube specimens, while tensile strength was investigated using 150x300mm cylinder …
[Show full abstract] guidelines the mix proportion of concrete was prepared for M40 grade concrete is 1:1.75:1.87.Water cement ratio of 0.35 is constant.In this paper Natural Coarse Aggregate(NCA ...
Coarse aggregate: In this study two types of aggregates are used viz. e-waste and coarse aggregate. waste: Electronic waste or e-waste is a term used for electronic products that have become unwanted, non- working or obsolete, and have essentially reached the end of their useful life.
[Show full abstract] concrete as Crushed Concrete Waste Aggregate (CCWA) for new concrete is beneficial for environmental preservation and effective utilization of resources. From present ...
It is found that the compressive, split tensile and flexure strength of ceramic coarse aggregate are lower by 3.8%, 18.2% and 6% respectively when compared to …
The effect of waste ceramic tile as a coarse aggregate replacement for natural coarse aggregate in concrete on workability, compressive strength, split tensile strength, water absorption, and pores has been investigated.
The aim of study is to produce durable structural concrete by using waste ceramics with specified type (white clay ceramics) as coarse aggregates in concrete.
This study examines the use of manufactured plastic coarse aggregate (PCA) obtained from E-waste as a partial replacement of natural coarse aggregate (NCA) in concrete. Six types of concrete mix ...
An experimental study is made on the utilization of E-waste particles as fine and coarse aggregates in concrete with a percentage replacement ranging from 0%, 20% to 30% i.e. (0%, 10%, 20% and 30%) on the strength criteria of M20 Concrete. ... Objectives x To identify that e-waste can be disposed by using them as construction …
19.2.1 Recycled concrete aggregate (RCA). Coarse RCA complies to the requirements of maximum 5% masonry content, 5% fine materials, 0.5% lightweight material, 5% asphalt, 1% foreign material and 1% acid soluble sulfate, and is suitable for use in concrete as per BS 8500-2 (2006).In designated concrete RC20/25 to RC40/50, RCA can automatically …
As a result, a novel and cost-effective solution must be implemented to eliminate or minimize the reliance on natural coarse aggregate stone by partially …
Fresh ceramic waste coarse aggregate concrete was more cohesive and workable than conventional concrete. This is due to the lower water absorption and smooth surface texture of the ceramic waste coarse aggregate. The compressive strength varied from 4 to 21 MPa. As far as strengths are concerned, the basic trend in the behavior of ceramic …
Mohammed et al. [10] studied the influence of replacing natural fine and coarse aggregates with waste glass aggregates (at the replacement ratios of 0%, 5%, 10%, 15%, and 20% by volume) on the ...
Keywords: waste wood; coarse aggregate; concrete; strength; durability; fire resistance 1. Introduction The Indian construction industry consumes about 400 million tonnes of concrete every year and it is expected that this may reach a billion tonne in less than a decade. All the materials required to produce such huge quantities of concrete ...
Use of demolished concrete waste as coarse aggregate in concrete leads to reduce construction cost and also it helps to reduce the percentage of coarse aggregate. In this project we have study on partial …
Unit weight and elastic modulus of concrete utilizing volcanic stone waste (VSW) as coarse aggregate have been studied at 28 days of hydration.
An experimental program was conducted in order to compare the engineering properties of reclaimed concrete aggregate waste from various demolition sources: lab-tested concrete waste from a ...
The impact of replacing traditional coarse aggregates with ceramic waste aggregates in the structure of Ceramic Waste Aggregate Concrete (CWAC) is investigated in this paper.
This study is focused to improve strength and durability properties of green concrete with E-waste as fine (10%, 20% and 30%) and coarse aggregates (5%, 10% and 15%) replacement in fibre ...
The compressive strength thus, observed was compared with strength of conventional concrete. Test results showed that the compressive strength of recycled concrete up to 30% coarse aggregate replacement (C. A. R.) by demolished waste at the end of 28 d has been found to be comparable to the conventional concrete.
The paper reports on the performance of 34 different concrete mixes containing glass crushed to ¾-in. (19-mm) maximum size as coarse aggregate and six reference mixes made with gravel of the same size. Two cements of alkali equivalent 0.58 and 1.13, classifiable as low and high alkali (ASTM C 150-72), in amounts ranging from 400–900 …
A few studies have reported PP waste plastic as the replacement for coarse aggregate [1,27,39]. Therefore, this study focuses on the durability properties, such as shrinkage, the effect of elevated temperature, chloride ion penetrability, and bond strength of PP coarse aggregate concrete.
In addition, waste materials, when properly processed, have shown to be effective as construction materials and readily meet the design specifications [5], [6]. This study focuses on producing concrete of acceptable strength with waste glass as coarse aggregate and determining the optimum coarse aggregate mix ratio to achieve this strength. II.
The concept of repeated recycling of concrete is as follows: recycled coarse and fine aggregates obtained by crushing concrete waste, mainly natural …
In recent years, a lot of researchers interested in using waste materials as coarse or fine aggregate in concrete such as waste plastics, bricks, rocks, ceramic, glass, industrial wastes, and ...
Fine waste glass (FWG) and coarse waste glass (CWG) were utilised to replace natural fine and coarse aggregates at replacement rates of 0%, 10%, 15%, and 20%, with a constant water-to-binder (w/b ...
rubber in concrete shown a significant reduction in the mechanical strength of the resulting concrete. This research work aimed at using modified waste rubber tyre aggregate in concrete production. Coarse aggregate was replaced with modified waste tyre rubber at 0%, 10%, 20%, and 30% by volume of coarse aggregate.
Spain Microstructure and characteristics of recycled concrete containing ceramic sanitary ware waste as coarse aggregate [81] Nigeria Ceramic-lateralized concrete microstructural properties ...