A mechanical strong polymer-cement composite fabricated by in situ polymerization within the cement matrix

被引:57
作者
Liu, Qing [1 ]
Lu, Zeyu [2 ]
Hu, Xiaosai [3 ]
Chen, Binmeng [4 ]
Li, Zongjin [1 ]
Liang, Rui [1 ]
Sun, Guoxing [1 ]
机构
[1] Univ Macau, Joint Key Lab, Inst Appl Phys & Mat Engn, Minist Educ, Ave Univ, Taipa, Macau Sar, Peoples R China
[2] Southeast Univ, Sch Mat Sci & Engn, Nanjing 211189, Peoples R China
[3] Yancheng Inst Technol, Coll Text & Clothing, Yancheng, Jiangsu, Peoples R China
[4] Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Clear Water Bay, Hong Kong, Peoples R China
来源
JOURNAL OF BUILDING ENGINEERING | 2021年 / 42卷
关键词
Flexural strength; In situ polymerization; Monomers; Cement; Interwoven network; ELASTIC PROPERTIES; FLEXURAL STRENGTH; PORTLAND-CEMENT; GRAPHENE OXIDE; CONCRETE; BEHAVIOR; LATEX; SUPERABSORBENT; DURABILITY; MORTARS;
D O I
10.1016/j.jobe.2021.103048
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Durability and service life of cementitious materials are seriously affected by their low flexural strength and high brittleness. Herein, we developed a novel polymer-modified cementitious composite (PMCC) with enhanced mechanical performances by introducing acrylic acid (AA) and 2-acrylanmido-2-methylpropanesulfonic acid (AMPS) monomers into the cement matrix to form a strong polymer-cement network via in situ polymerization. By optimizing the mass ratio of AA-AMPS copolymer to cement, PMCC with a tunable and enhanced mechanical performance can be achieved. Samples with 3.0 wt% AA-AMPS copolymer exhibited the highest increase of 81.1% in flexural strength while retained adequate compressive strength under the standard curing. The strong chemical interactions between Ca2+ and AA-AMPS copolymer chains that can help form an interwoven polymercement network in the cement matrix contributed to this enhanced flexural strength. In fact, drawbacks including large pore size, easy crack, and brittleness can be surmounted effectively via the construction of a polymercement network in the cement matrix, then mechanical enhancement can be obtained. This work paves a new way to develop a unique PMCC with high flexural strength via the in situ polymerization of monomers within the cement matrix.
引用
收藏
页数:11
相关论文
共 54 条
  • [31] LU Z, 2019, CEMENT CONCRETE RES, V126, P1
  • [32] Surface modification of polyethylene fiber by ozonation and its influence on the mechanical properties of Strain-Hardening Cementitious Composites
    Lu, Zeyu
    Yin, Ran
    Yao, Jie
    Leung, Christopher K. Y.
    [J]. COMPOSITES PART B-ENGINEERING, 2019, 177
  • [33] Graphene oxide modified Strain Hardening Cementitious Composites with enhanced mechanical and thermal properties by incorporating ultra-fine phase change materials
    Lu, Zeyu
    Lu, Cong
    Leung, Christopher K. Y.
    Li, Zongjin
    [J]. CEMENT & CONCRETE COMPOSITES, 2019, 98 : 83 - 94
  • [34] Early-age interaction mechanism between the graphene oxide and cement hydrates
    Lu, Zeyu
    Li, Xiangyu
    Hanif, Asad
    Chen, Binmeng
    Parthasarathy, Pavithra
    Yu, Jinguang
    Li, Zongjin
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2017, 152 : 232 - 239
  • [35] Effects of two oppositely charged colloidal polymers on cement hydration
    Lu, Zichen
    Kong, Xiangming
    Zhang, Chaoyang
    Jansen, D.
    Neubauer, J.
    Goetz-Neunhoeffer, F.
    [J]. CEMENT & CONCRETE COMPOSITES, 2019, 96 : 66 - 76
  • [36] Reinforcement of hydrated portland cement with high molecular mass water-soluble polymers
    Morlat, Richard
    Orange, Gilles
    Bomal, Y.
    Godard, Pierre
    [J]. JOURNAL OF MATERIALS SCIENCE, 2007, 42 (13) : 4858 - 4869
  • [37] Mechanical improvement of calcium carbonate cements by in situ HEMA polymerization during hardening
    Myszka, Barbara
    Hurle, Katrin
    Zheng, Kai
    Wolf, Stephan E.
    Boccaccini, Aldo R.
    [J]. JOURNAL OF MATERIALS CHEMISTRY B, 2019, 7 (21) : 3403 - 3411
  • [38] Polymer-based admixtures
    Ohama, Y
    [J]. CEMENT & CONCRETE COMPOSITES, 1998, 20 (2-3) : 189 - 212
  • [39] Mechanical and adhesion properties of polymer-modified cement mortars in relation with their microstructure
    Papaioannou, S.
    Argyropoulou, R.
    Kalogiannidou, C.
    Melidis, G.
    Papadopoulou, L.
    Evelzaman, I.
    Argyropoulou, M.
    [J]. JOURNAL OF ADHESION, 2019, 95 (02) : 126 - 145
  • [40] Mesocrystalline calcium silicate hydrate: A bioinspired route toward elastic concrete materials
    Picker, Andreas
    Nicoleau, Luc
    Burghard, Zaklina
    Bill, Joachim
    Zlotnikov, Igor
    Labbez, Christophe
    Nonat, Andre
    Coelfen, Helmut
    [J]. SCIENCE ADVANCES, 2017, 3 (11):