Innovative Recycled Aggregate and Fly Ash …
The rest of the mix consists of fly ash, slag, crushed recycled concrete for both coarse aggregate and sand, recycled concrete water, and admixtures. The air-entrained mix, with a water-cement (w/c) ratio of 0.45, attained an ultimate compressive strength exceeding 4000 psi and reasonable early strength.
(PDF) Use of recycled aggregate and fly ash in …
PDF | On Jan 1, 2011, M.N. James and others published Use of recycled aggregate and fly ash in concrete pavement | Find, read and cite all the research you need on ResearchGate
Recycled Concrete Sand | Sustainable Concrete …
Recycled Concrete Sand (PTY) Ltd is a dynamic innovative company based in Cape Town South Africa. 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 especially in Concrete.
Green Concrete: Recycled Aggregate and Partial …
Green Concrete: Recycled Aggregate and Partial Replacement of Cement with Fly Ash - written by Vipin Mahadeven , Abhishek Kumar Verma , Deepak Patel published on 2019/05/01 download full article with reference data and citations
Fly Ash
pre-consumer) This credit is awarded if concrete consists of at least 30% fly ash, slag, or other cement substitute and/or 50% recycled content or reclaimed aggregate by volume, or 90% recycled content or reclaimed aggregate based on the IS0 14021 definition. LEED v4 recognizes fly ash as 100% pre-consumer recycled product.
Recycled glass concrete - ScienceDirect
Comparison of effect of fly ash on expansion of mortar bar (a) without fly ash and (b) with fly ash containing different recycled glass content (Kou and Poon, 2009). The ASR expansion rate of the recycled glass concrete mixes was also measured using the concrete prisms prepared using the same exposure condition as the mortar bar test method (ASTM C1260).
Recycled Aggregate in Concrete: Use of Industrial ...
Request PDF | Recycled Aggregate in Concrete: Use of Industrial, Construction and Demolition Waste | Concrete is the most used man-made material in the world since its invention. Worldwide, about ...
Glass Aggregate - an overview | ScienceDirect Topics
Xie et al. (2003) studied the use of waste glass/fly ash/sodium silicate concrete. The glass aggregate showed much reduced ASR expansion in the alkali-activated system compared with that of Portland cement mortar where even a small substitution of natural …
Experimental Study of Recycled Aggregate Concrete with ...
Fly ash compresses of minute particles which when mix with the atmosphere cause pollution problems. Fly ash can be used as a cement replacement material in concrete and the research work on this concluded mechanical properties of concrete increases with the fly ash in concrete as cement replacement material or admixtures [12], [18].
Effect of fly ash on compressive strength of …
In this research the natural coarse aggregate is replaced with recycled coarse aggregate. Fly ash needed as material addition to improve concrete quality. The purpose of this research is to know the effect of the using percentage of recycling coarse aggregate, the percentage of fly ash and water-cement ratio to the compressive strength of concrete.
AET| Concrete Construction Magazine
aet Posted on November 03, 2011 Innovative Recycled Aggregate and Fly Ash Concrete Mix
US6669773B2 - Fly ash/mixed stone aggregate …
The present invention is directed at a synthetic lightweight aggregate composition comprising fly ash and a mixture of two or more polymer components. More specifically, the present invention is also directed at a lightweight concrete which cures to a hardened cementious composite comprising Portland cement, water in a weight ratio of between about 0.2 and 0.7 of the water to the Portland ...
Strength and Durability Evaluation of Recycled …
14-5-2015 · This stone discusses the suitability of producing concrete with 100 % recycled aggregate to meet durability and strength requirements for different applications. Aggregate strength, gradation, absorption, specific gravity, shape and texture are some of the physical and mechanical characteristics that contribute to the strength and durability of concrete.
STUDY OF STRENGTH CHARACTERISTICS OF …
The study aimed at investigating the structural use of recycled coarse aggregate by studying the strength characteristics of Recycled Aggregate in concrete and appropriate percentage of fly ash is used for the replacement of conventional cement. The laboratory experimental work has been conducted to determine the strength characteristics of concrete by replacing recycled aggregates and fly ash ...
CONCRETE MIX WITH 100% FLY ASH AND …
Fly ash blended cements are produced by several cement companies in India. In general, the use of fly ash in the concrete industry with OPC cement is normally ranges from 15 to 25%. If concrete is properly designed, the use of fly ash in concrete will improve some aspects of the performance of the concrete. The use of fly ash can increase long ...
Use of Fly Ash Concrete with Recycled Glass …
For this project (a new banking facility in Missoula, MT), the focus is on characterizing the engineering and long term durability performance of a 100% “green” concrete made with recycled crushed glass as the aggregate and a high calcium class C fly ash as the binder.
Concrete with recycled aggregates: the Portuguese ...
14-4-2010 · The main objective of this study is to define expedient procedures to estimate the properties of structural concrete that contains recycled aggregates. Experimental results from Portuguese research, most of which supervised by the first author, were used to establish a relationship between some properties of hardened concrete (compressive strength, splitting and flexural tensile strength ...
Study the Properties of High Volume Flyash …
A huge amount of solid concrete waste is generated annually from construction and demolition activities. This has led to the promotion of reusing of recycled concrete aggregate (RCA) or recycled aggregate (RA) as a major measure to reduce waste and to mitigate the harmful effects of construction activities on the environment. In this paper, strength characteristics of high volume fly ash (FA ...