TY - GEN
T1 - Influence of multi-phase carboxylate salt on mortar properties under sulfate environment
AU - Shi, Liang
AU - Liu, Jiaping
AU - Cai, Jingshun
AU - Gao, Yun
AU - Liu, Jianzhong
N1 - Publisher Copyright:
© 2018 Trans Tech Publications, Switzerland.
PY - 2018/10/29
Y1 - 2018/10/29
N2 - A novel multi-phase carboxylate (MPC) salt was prepared by free radical polymerization. Influence of MPC salt on properties of mortar under sulfate environment was investigated. The results from static solution soaking and wet-dry cycling tests indicated that MPC would not bring negative effects on strength and shrinkage of mortar. In particular, MPC was able to reduce the strength loss as a result of inhibiting the generation and growth of ettringite in static solution soaking test. The crystal expansion of AFt was reduced since the Ca2+ dissolution and SO42- ingress were less. Meanwhile, the strength loss of mortar under sulfate wet-dry cycling could be reduced as well by MPC. MPC inhibited the growth of CaSO4·2H2O crystals by replacing the functional groups. The growth of micro-cracks in cement paste was inhibted and the the risk of crystal expansion and destruction of mortar was reduced. It was believed that MPC exhibited an excellent sulfate attack resistance for mortar.
AB - A novel multi-phase carboxylate (MPC) salt was prepared by free radical polymerization. Influence of MPC salt on properties of mortar under sulfate environment was investigated. The results from static solution soaking and wet-dry cycling tests indicated that MPC would not bring negative effects on strength and shrinkage of mortar. In particular, MPC was able to reduce the strength loss as a result of inhibiting the generation and growth of ettringite in static solution soaking test. The crystal expansion of AFt was reduced since the Ca2+ dissolution and SO42- ingress were less. Meanwhile, the strength loss of mortar under sulfate wet-dry cycling could be reduced as well by MPC. MPC inhibited the growth of CaSO4·2H2O crystals by replacing the functional groups. The growth of micro-cracks in cement paste was inhibted and the the risk of crystal expansion and destruction of mortar was reduced. It was believed that MPC exhibited an excellent sulfate attack resistance for mortar.
KW - Mechanical performance
KW - Multi-phase carboxylate salt
KW - Sulfate attack
KW - Volumetric deformation
UR - https://www.scopus.com/pages/publications/85060985713
U2 - 10.4028/www.scientific.net/KEM.783.120
DO - 10.4028/www.scientific.net/KEM.783.120
M3 - 会议稿件
AN - SCOPUS:85060985713
T3 - Key Engineering Materials
SP - 120
EP - 125
BT - 2018 International Conference on Material Science and Engineering, ICMSE 2018
A2 - Shi, Dongyan
PB - Trans Tech Publications Ltd
T2 - 3rd International Conference on Material Science and Engineering, ICMSE 2018
Y2 - 15 June 2018 through 17 June 2018
ER -