Influence of Fly Ash, Bottom Ash, and Light Expanded Clay Aggregate on Concrete

Abstract

Invention of new methods in strengthening concrete is under work for decades. Developing countries like India use the extensive reinforced construction works materials such as fly ash and bottom ash and other ingredients in RCC construction. In the construction industry, major attention has been devoted to the use of fly ash and bottom ash as cement and fine aggregate replacements. In addition, light expanded clay aggregate has been introduced instead of coarse aggregate to make concrete have light weight. This paper presents the results of a real-time work carried out to form light weight concrete made with fly ash, bottom ash, and light expanded clay aggregate as mineral admixtures. Experimental investigation on concrete mix M20is done by replacement of cement with fly ash, fine aggregate with bottom ash, and coarse aggregate with light expanded clay aggregate at the rates of 5%, 10%, 15%, 20%, 25%, 30%, and 35% in each mix and their compressive strength and split tensile strength of concrete were discussed for 7, 28, and 56 days and flexural strength has been discussed for 7, 28, and 56 days depending on the optimum dosage of replacement in compressive strength and split tensile strength of concrete.

Physical and Chemical Properties, Pretreatment, and Recycling of Municipal Solid Waste Incineration Fly Ash and Bottom Ash for Highway Engineering: A Literature Review

“…Chlorides and sulfates may cause corrosion of steel bars and damage of cement concrete. e metal cations can delay the setting time of cement concrete [159]. Al in the bottom ash will also generate hydrogen due to the alkaline environment formed by cement hydration, which will lead to the existence of bubbles in cement concrete and reduce the product quality [160].…”

Kombinasi Abu Dasar Batu Bara dan Abu Vulkanik sebagai Material Beton

“…Material alternatif lainnya menurut Sivakumar dan Kameshwari (2015), sebagai bahan campuran beton dapat dikembangkan dari limbah bottom ash. Agregat halus dapat diganti dengan bottom ash untuk campuran beton, namun dengan penggantian di atas 10% pengurangan kekuatan tekan beton cukup signifikan (Sivakumar dan Kameshwari 2015). Nilai kekuatan tekan beton dipengaruhi oleh material yang digunakan, baik kualitas semen, maupun agregat kasar (kerikil) dan agregat halus (pasir).…”

Development of a new method for obtaining claydite with a minimal thermal conductivity coefficient

“…The influence of flying ash, ash residue and claydite on the properties of concrete was studied in [11]. Authors conducted a detailed study into characteristics of the strength of the samples.…”