Mar 1, 2025 · fly ash in concrete “reduces the alkalinity, which can in turn reduce the danger of alkali silica reactivity in the aggregate—and the need in some areas to import nonreactive …

16 hours ago · This study presents the results of an extensive laboratory investigation on the characterization of angular-shaped fly ash aggregates (FAAs) and their potential as an …

Fly ash serves as an exceptionally good raw material because it is available in large quantities in geographic areas where lightweight aggregates are in demand. The commercial methods in …

Dec 1, 2008 · Lightweight aggregates have been manufactured by sintering fly ash and crushing the product into suitable sizes. These aggregates possess unique characteristics that make …

Light weight aggregate concrete uses the aggregates having low specific gravity when contrasted with the normal aggregates. Bottom ash is utilized to produce the light weight aggregates. The …

Fly ash is the fine ash produced at coal-fired power plants that develops cementitious properties when mixed with cement and water. Fly ash in concrete is widely used across the U.S. to the …

Fly ash is known to be a good pozzolanic material and has been used to increase the ultimate compressive strength and workability of fresh concrete.

Therefore it is feasible to adopt fly ash as a partial replacement of fine aggregate when it is exposed to elevated temperature and can be effectively used for structural concrete. 1. …

Sep 18, 2024 · The paper discusses the engineering properties and performance of a novel angular-shaped fly ash aggregate (AFA) as a complete replacement for natural stone …

Oct 8, 2024 · This research paper presents a detailed investigation into the use of waste fly ash–based lightweight aggregate developed by a sintering process in concrete. These …

Sintered fly ash aggregate is a group of material that can vary significantly in composition. It is residue left from burning coal, which is collected on an electrostatic precipitator. These theses …

Jun 3, 2013 · Mechanical strength properties of various fly-ash aggregate were tested for crushing strength and impact strength. The investigation results suggested that the cold-bonded fly-ash …

16 hours ago · It gives fly ash concrete less cracking and shrinkage than conventional concrete. Moreover, because of its good flowability with the mixture, it can easily be placed and …

Fly-ash is mainly used for the dumping purpose or as a fine aggregate or in purpose of making of bricks. The study is aimed to develop a technique for producing an aggregate with the fly-ash …

Fly ash aggregates forms by two process, namely compaction and granulation. Agglomeration technique was developed in 1940s. Granulation technique is the process of sprinkling water on …

Fly ash is one promising material which can be used as both supplementary cementitious materials as well as to produce light weight aggregate. This paper mainly focuses on …

Mar 3, 2025 · Recent investigations have shown that the mechanical and durability properties of recycled aggregate concrete can be enhanced using fly ash (FA) and structural fibres. …

3 days ago · Bhatt et al. 7 reviewed the high calcium fly ash, which is classified as class C fly ash from ASTM standard, provides self-cementing properties, where its reactive silica (SiO 2) and …

Sep 15, 2024 · In mixing dry materials, namely, fine aggregate, cement and fly ash, were mixed for 1 min. Water was added to the dry materials, and they were mixed for approximately 5 min …

2 days ago · The alkaline solution to fly ash (0.45 by weight) and fine aggregate to fly ash (1.60 by weight) were the constant ratios used to create the GP; the synthetic steel fiber content (0%, …

3 days ago · Fly ash is a byproduct of coal-fired power plants, with an annual global production of 6-8 billion tons [5].The partial replacement of cement with fly ash and other supplementary …

Mar 27, 2025 · One promising substitute for fly ash is limestone powder (LP), which garnered attention in recent years for its cost-effectiveness and widespread availability, primarily as a …