Effect of spherical silica fume and fly ash on the rheological property, fluidity, setting time, compressive strength, water resistance and drying shrinkage of magnesium ammonium phosphate cement

被引：73

作者：

Dong, Dong ^{[1
]}

Huang, Yongbo ^{[1
]}

Pei, Yan ^{[2
]}

Zhang, Xiaoyang ^{[3
]}

Cui, Na ^{[4
]}

Zhao, Piqi ^{[1
]}

Hou, Pengkun ^{[1
]}

Lu, Lingchao ^{[1
]}

机构：

[1] Univ Jinan, Shandong Prov Key Lab Preparat & Measurement Bldg, Jinan 250022, Peoples R China

[2] Shandong Univ, Geotech & Struct Engn Res Ctr, Sch Civil Engn, Jinan 250061, Peoples R China

[3] Shandong Shanlv Environm New Mat Co LTD, Zibo 255000, Peoples R China

[4] Univ Jinan, Sch Civil Engn & Architecture, Jinan 250022, Peoples R China

来源：

JOURNAL OF BUILDING ENGINEERING | 2023年 / 63卷

关键词：

Magnesium ammonium phosphate cement; Spherical silica fume; Spherical fly ash; Viscosity; Water resistance; BASALT FIBER; STABILITY; REPAIR; PASTE;

D O I：

10.1016/j.jobe.2022.105484

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Due to the high bonding strength, Magnesium ammonium phosphate cement (MAPC) is suitable for the crack repair. However, the fast initial hydration rate, high viscosity and poor water resis-tance hinder its application in the crack repairing engineering. To solve the above problems, the spherical silica fume and fly ash were added into MAPC. The effects of spherical silica fume and fly ash on the rheological property, fluidity, setting time, compressive strength, water resistance and drying shrinkage of MAPC were studied. The results showed that both spherical silica fume and fly ash could reduce the plastic viscosity of MAPC and prolong the setting time. Spherical fly ash could improve the fluidity of MAPC. The late-age strength and water resistance of MAPC were increased and the drying shrinkage was reduced by adding spherical silica fume and fly ash. Therefore, it is concluded that the addition of spherical silica fume and fly ash into MAPC makes it more available to be applied in the crack repairing engineering.

引用

页数：16

共 40 条

[1] A comprehensive study of basalt fiber reinforced magnesium phosphate cement incorporating ultrafine fly ash [J].

Ahmad, Muhammad Riaz ;

Chen, Bing ;

Yu, Jiang .

COMPOSITES PART B-ENGINEERING, 2019, 168 :204-217

[2] Effect of silica fume and basalt fiber on the mechanical properties and microstructure of magnesium phosphate cement (MPC) mortar [J].

Ahmad, Muhammad Riaz ;

Chen, Bing .

CONSTRUCTION AND BUILDING MATERIALS, 2018, 190 :466-478

[3] Rheological parameters, thixotropy and creep of 3D-printed calcium sulfoaluminate cement composites modified by bentonite [J].

Chen, Mingxu ;

Liu, Bo ;

Li, Laibo ;

Cao, Lidong ;

Huang, Yongbo ;

Wang, Shoude ;

Zhao, Piqi ;

Lu, Lingchao ;

Cheng, Xin .

COMPOSITES PART B-ENGINEERING, 2020, 186

[4] Rheological parameters and building time of 3D printing sulphoaluminate cement paste modified by retarder and diatomite [J].

Chen, Mingxu ;

Li, Laibo ;

Wang, Jiaao ;

Huang, Yongbo ;

Wang, Shoude ;

Zhao, Piqi ;

Lu, Lingchao ;

Cheng, Xin .

CONSTRUCTION AND BUILDING MATERIALS, 2020, 234

[5] Effect of curing regime on water resistance of magnesium-potassium phosphate cement [J].

Chong, Linlin ;

Yang, Jianming ;

Shi, Caijun .

CONSTRUCTION AND BUILDING MATERIALS, 2017, 151 :43-51

[6] Experimental research of water stability of magnesium alumina phosphate cements mortar [J].

Fan, Shijian ;

Chen, Bing .

CONSTRUCTION AND BUILDING MATERIALS, 2015, 94 :164-171

[7] Experimental study of phosphate salts influencing properties of magnesium phosphate cement [J].

Fan Shijian ;

Chen Bing .

CONSTRUCTION AND BUILDING MATERIALS, 2014, 65 :480-486

[8] Orthogonal experimental analysis of the material ratio and preparation technology of single-component epoxy resin for asphalt pavement crack repair [J].

Fang, Yun-feng ;

Ma, Biao ;

Wei, Kun ;

Wang, Lin ;

Kang, Xing-xiang ;

Chang, Xiang-guo .

CONSTRUCTION AND BUILDING MATERIALS, 2021, 288 (288)

[9] Investigating and optimizing the mix proportion of sustainable phosphate-based rapid repairing material [J].

Feng Lei ;

Chen Xi-qing ;

Wen Xiao-dong ;

Zhang Zheng-ya ;

Shou Lv-yan .

CONSTRUCTION AND BUILDING MATERIALS, 2019, 204 :550-561

[10] Magnesium Phosphate Cements formulated with a low-grade MgO by-product: Physico-mechanical and durability aspects [J].

Formosa, J. ;

Lacasta, A. M. ;

Navarro, A. ;

del Valle-Zermeno, R. ;

Niubo, M. ;

Rosell, J. R. ;

Chimenos, J. M. .

CONSTRUCTION AND BUILDING MATERIALS, 2015, 91 :150-157

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