Key factors affecting the compressive strength of foamed concrete

14th International Conference on Concrete Engineering and Technology

Falliano, Devid^1 ; De Domenico, Dario^1 ; Ricciardi, Giuseppe^1 ; Gugliandolo, Ernesto^2

Department of Engineering, University of Messina, Contrada Di Dio, Sant'Agata, Messina

98166, Italy^1

G. Gugliandolo S.r.l., Via Galileo Galilei, Messina

98100, Italy^2

关键词: Cement type;    Crucial parameters;    Cubic specimens;    Curing condition;    Experimental campaign;    Experimental investigations;    Foamed concrete;    Water/cement ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/431/6/062009/pdf
DOI  :  10.1088/1757-899X/431/6/062009

来源: IOP

【 摘 要 】

This contribution aims to highlight, from an experimental point of view, the key factors affecting the compressive strength of foamed concrete. An experimental campaign has been conducted on a broad group of cubic specimens made of foamed concrete under compression tests at 28 days. In addition to the obvious influence of the density on the achievement of the compressive strength, other factors have been studied. In particular, three different curing conditions, three foaming agents with either synthetic or protein nature, two different cement types, and three water/cement ratios have been included in this experimental investigation. As a result of this experimental campaign, it has been found that the not only the density, but also the foaming agent and the water/cement ratio play a major role in the strength achievement of the foamed concrete. It is also demonstrated that the combination of the foaming agent with a particular water/cement ratio is a crucial parameter affecting the compressive strength of this material.