writer：Liu Jiesheng
keywords：silane
source：期刊
specific source：Journal of testing and evaluation
Issue time：2016年
In the present paper, the addition of silane to improve the properties of mortar was
experimentally investigated. The morphology and microstructure of mortar were
investigated by using both scanning electron microscopy (SEM) and polarizing microscopy
(PM). The results show that silane significantly alters the microstructure of mortar, reduces
the crystallization, restricts the degree of hydration of cement-based materials, and
decreases micro-voids. As a result, silane effectively improves the chemical and carbonation
resistance, as well as the chloride and water penetration resistance of mortar. Results also
indicate that the consistency of mortar was improved but the compressive strength of the
mortar was decreased. Specifically, silane would also be beneficial to the bridging cracking
function to resist crack propagation.