study on use of coconut shell powder as a substitute or replacement for fine aggregates in concrete is gaining importance in terms of possible reduction of waste product in environment and finding a sustainable alternative for natural river sand. In this study, coconut shell powder is used as light weight aggregate in concrete. The
In this study, concrete mixes with fine and coarse aggregates recycled from fresh concrete waste as a substitution of natural aggregates are studied. Optimised design of experiment was used with two variables (rates of fine aggregate replacement or of coarse aggregate replacement) on the basis of identical composition.
hence in this study M20 cement concrete is considered in which the recycled plastic waste is used as the replacement of fine aggregate in the concrete. Concrete cube and beam were casted taking 10% to 25% of plastic as partial replacement of fine aggregate and tested for 28 days of compressive strength and flexural strength of concrete. 1.
mixes are almost impermeable. However, partial replacement of fine aggregates with 5% of rubber can potentially be used in low strength concrete applications. _____ Keywords: OPC, aggregates, rubber, workability, compressive and tensile splitting strengths INTRODUCTION The manufacture of concrete.
Use of Blast Furnace Slag Aggregate in Concrete Hiraskar and Chetan Patil AbstractThe Iron industries produce a huge quantity of blast furnace slag as by–product, which is a non–biodegradable waste material from that only a small percentage of it is used by .
to the increase demand by the construction industry. In order to reduce dependence on natural aggregates as the main source of aggregates in concrete, artificially manufactured aggregates and artificial aggregates from industrial wastes provide an alternative for the construction industry.
Aggregates have three primary uses in highway construction: 1) As compacted aggregates in bases, subbases and shoulders 2) As ingredients in hot mix asphalt 3) As ingredients in portland cement concrete Aggregates may also be used as special backfill .
Oct 11, 2018· The conclusions of this research support the use of Tire Derived Aggregates as alternative fine aggregates in low strength concrete to be a new type wall insulation materials applications if properly confined.
coarse aggregates by weight, fine rubber for partial replacement of fine aggregates by weight. Fine Rubber Tyre chunk Tube Rubber . Three replicates of Cubes (150 mm × 150 mm × 150 mm) and cylinders (150 mm diameter and 300 mm in depth) were casted for plain cement concrete and various variants in which
EXPERIMENTAL STUDY ON PARTIAL REPLACEMENT OF WASTE CEREMIC TILES USED AS AN ALTERNATIVE COARSE AGGREGATE IN CONCRETE 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.
sand by crushed stone dust as fine aggregate and reported that 40 percent sand can be replaced by crushed stone dust without effecting the strength of concrete. 3) Venugopal (1999) et al., examined the effect of rock dust as fine aggregate in cement and concrete mixes.
Aggregates for Concrete The importance of using the right type and quality of aggregates cannot be overemphasized. The fine and coarse aggregates generally occupy 60% to 75% of the concrete volume (70% to 85% by mass) and strongly influence the concrete's freshly mixed and hardened properties, mixture proportions, and economy.
In this paper, the issues of environmental and economic concern are addressed by the use of waste glass as partial replacement of fine aggregates in concrete. Fine aggregates were replaced by waste glass powder as 10%, 20%, 30% and 40% by weight for M25 mix.
Assessment concept for the sustainable use of secondary aggregates in concrete . T. Herbst. 1, K. Rübner. 1, B. Meng, and B. Hauer. 2. 1. BAM Federal Institute for Materials Research and Testing, Berlin, Germany . 2. ABSTRACT: Nowadays there are several applications of m ineral recycling materials and residues.
concrete consists of sand as fine aggregate and gravel, limestone or granite in various sizes and shapes as coarse aggregate. There is a growing interest in using waste materials as alternative aggregate materials and significant research is made on the use of many different materials as
AbstractNatural sand is a standout among the most ordinarily utilized fine aggregate as a part of concrete. Owning to acute shortage of natural sand in many areas and keeping environmental and cost factors into consideration an alternative for the same is pondered. In view of above discussion, an attempt is made to replace the cement and ...