Polymer-modified cement mortar (PMCM) composite materials have drawn the attention of
researchers worldwide because of their excellent capabilities such as crack resistance …

In cold regions, concrete structures such as pavements, bridges, and tunnels can undergo
freeze-thaw conditions, which may significantly deteriorate the performance of concrete and …

Air-entraining agent (AEA) was first used in concrete in 1930's to improve freezing–thawing
resistance of concrete. After about 90 years of experience, many debates have been raised …

Air-entraining agent (AEA) has been used for decades to improve cementitious materials'
freezing–thawing resistance. However, the strength reduction and durability degradation …

Hybrid fiber affects the structure of air voids of hardened concrete and further affects the
performance of concrete. A laboratory test quantitatively analyzes the characteristics of air …

The types of commercial superabsorbent polymer (SAP) mainly include ionic-SAP acrylic
acid (AA) and nonionic-SAP acrylamide-acrylic acid copolymer (AM), which have different …

In cold regions, hydraulic concrete structures are vulnerable to freeze–thaw (FT) damage,
which is manifested by the evolution of microstructure in concrete. In order to reveal this …

The influences of entrained air on the pore size distribution and pore parameters of
hardened mortar and concrete were investigated by MIP. It was found that the dosage of …

In this study, diatomite was used in cement mortar to improve the frost resistance durability.
Experimental results showed that using diatomite instead of a small amount of silica fume …

The deterioration of concrete microstructures in freeze–thaw (F–T) cycles is the primary
reason for the reduction in the service life of concrete. This paper reviews recent progress in …