Analysis of physical and mechanical properties of vacuum treated claydite-concrete

Alan Khubaev,Alina Rybakova,Tembot Bidov,V Andreev,A Adamtsevich,A Ter-Martirosyan,T Matseevich

doi:10.1051/matecconf/201819604071

Alan Khubaev, Alina Rybakova + Show 5 more

Open Access

https://doi.org/10.1051/matecconf/201819604071

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Abstract

In this article the analysis of the impact of some physical and mechanical properties of vacuum treated claydite-concrete is presented. The work purpose is to describe in detail the results of the experimental and analytical studies of the claydite-concrete composition influence on the vacuum treatment intensity and amount of removed water. These results are obtained by solving the following problems: compressive strength investigation of the claydite-concrete samples; consideration of the phenomenon of "self-vacuuming treatment" of the porous aggregate as a factor, promoting claydite-concrete strength; consideration of such an aspect as "adhesion between claydite-concrete and reinforcement", and the porosity learning as a factor of the quality assessing of the building products and structures. A scientific and technical hypothesis is formed, which assumes the possibility of the practical recommendation developing for vacuum treatment intensity of the claydite-concrete. As a result, this gives an opportunity to intensify the concrete hardening.

Highlights

The concrete production with specified properties is one of the most important tasks in concrete technology
The physical and mechanical property improvement of the vacuum treated claydite-concrete with time-separated processes of water removal and vacuum seal is due to the fact that the structure density is increasing and more complete cement hydration is ensured
The values of compressive strength depending on the mode of, temperature and composition [1, 2] were determined using the static processing of experiment results

Summary

Introduction

The concrete production with specified properties is one of the most important tasks in concrete technology. It is especially difficult because of the necessary consideration of the factor variety, which characterize the claydite-concrete component quality when selecting the vacuum treated claydite-concrete compositions. One of the main advantages of the vacuum treatment technology of the freshly laid claydite-concrete with time-separated process of the water removal and vacuum seal, along with the intensification of the process of the concrete hardening, is to obtain a material with increased physical and mechanical properties. The physical and mechanical property improvement of the vacuum treated claydite-concrete with time-separated processes of water removal and vacuum seal is due to the fact that the structure density is increasing and more complete cement hydration is ensured

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