Heat-resistant properties of construction composites based on nanocarbon cement (nCMC)

Artemiy Cherkashin,Ivan Doroshin,Aleksandr Semencha,Polina Sherstobitova,Yasmin Begich,A Zheltenkov

doi:10.1051/e3sconf/20199102029

Abstract

The article discusses the use of nano-modified cement. Comparative tests of samples made on the basis of the test material for compressive strength. A differential thermal analysis was performed.

Highlights

According to the Emergencies Ministry, only in the 4th quarter of 2018 in Russia, the number of fires is approaching 34 thousand, due to which thousands of people died
Differential thermal analysis of samples from 1%, 3% and 5% of nCMC, and without the content of nCMC showed that Ca(OH)2 decomposes in the area from 480°C to 550°C, the cement stone becomes more porous, the corrosion of cement (Fig. 3)
On the Differential thermal analysis (DTA) curves, there is no significant correlation between the endothermic dips and the nCMC additives

Summary

Introduction

According to the Emergencies Ministry, only in the 4th quarter of 2018 in Russia, the number of fires is approaching 34 thousand, due to which thousands of people died. The materials from which the building structures are made are exposed to high temperatures and undergo various changes. These changes are accompanied by characteristic signs, which are expressed in the form of transformation of physical, chemical and mechanical properties of substances and materials, in the development of deformation, destruction or complete destruction of parts of the building [1-5]. The main task of improving the safety of buildings and structures during operation is to improve the fire resistance and heat resistance of structures, for this it is important to use modern materials with enhanced heat-resistant properties [6-11]. Research of the behavior of high-strength concrete in case of fire and after temperature exposure showed that changing the structure of concrete by adding some components to its composition contributes to changing the properties of concrete [13]

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