A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Acrylamide in-situ polymerization of toughened sulphoaluminate cement-based grouting materials
Highlights Acrylamide monomer changes the rigid structure of SCGM. A new PAM-AFt flexible-rigid double network structure is formed. A new model of axial compressive stress–strain curves for PAM-SCGM is established.
Abstract In this study, the toughening effect of acrylamide monomer (AM) on sulphate aluminate grouting material (SCGM) is investigated by axial compression, FT-IR, TGA and SEM. The results show that the toughness index (R) of acrylamide in-situ polymerization modified sulphoaluminate cement-based grouting material (PAM-SCGM) is 20.56 times than that of the cement paste, due to the in-situ polymerisation of acrylamide monomer forming an organic–inorganic double network structure with cement hydrides. Additionally, a new model of axial compressive stress–strain curves for PAM-SCGM is built, including Zone I (elastic stage), Zone II (yield softening stage), Zone III (plastic stage) and Zone IV (strengthening stage).
Acrylamide in-situ polymerization of toughened sulphoaluminate cement-based grouting materials
Highlights Acrylamide monomer changes the rigid structure of SCGM. A new PAM-AFt flexible-rigid double network structure is formed. A new model of axial compressive stress–strain curves for PAM-SCGM is established.
Abstract In this study, the toughening effect of acrylamide monomer (AM) on sulphate aluminate grouting material (SCGM) is investigated by axial compression, FT-IR, TGA and SEM. The results show that the toughness index (R) of acrylamide in-situ polymerization modified sulphoaluminate cement-based grouting material (PAM-SCGM) is 20.56 times than that of the cement paste, due to the in-situ polymerisation of acrylamide monomer forming an organic–inorganic double network structure with cement hydrides. Additionally, a new model of axial compressive stress–strain curves for PAM-SCGM is built, including Zone I (elastic stage), Zone II (yield softening stage), Zone III (plastic stage) and Zone IV (strengthening stage).
Acrylamide in-situ polymerization of toughened sulphoaluminate cement-based grouting materials
Wang, Jiru (author) / Zhang, Haibo (author) / Zhu, Yu (author) / Yan, Zhaoxia (author) / Chai, Hucheng (author)
2021-12-13
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2018