A Study on Aerogel Cement Mortar

Abstract

With the total world energy consumption increasing year by year the problems associate climate change continue to increase globally Building energy saving has become an important issue Aerogel is a superb thermal insulation material due to the unique properties of aerogel To achieve the purpose of building energy saving this study intends to use aerogel into construct materials and do some relation experiments In this study the experiments were divided into two parts: preparation of aerogel and adding aerogel to cement mortar First using methyltrimethoxysilane (MTMS) as a silica precursor to prepare aerogel through sol-gel method and ambient pressure drying and the characteristics of aerogel were tested Then the different proportions of aerogels lightweight aggregates and fibers were added to cement mortar Their density hydrophilic and hydrophobic thermal insulation water absorption and compressive strength were observed The results showed that hydrophobic aerogel was successfully modified into hydrophilic aerogel and the hydrophobic aerogel was added into cement mortar Adding aerogel into cement mortar could improve thermal insulation performance Nevertheless it was also reduce compressive strength Finally all the mortar made in this study meet the requirements of EN 998-1 standard for thermal conductivity and compressive strength of lightweight and thermal insulation mortar

Date of Award	2019
Original language	English
Supervisor	Ta-Hui Lin (Supervisor)