磷酸镁水泥基帆布力学与微观性能研究

doi:10.11896/cldb.23090003

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (34323KB)
Export: BibTeX | EndNote (RIS)

Abstract A new type of emergency protection material of MPC canvas was developed based on the characteristics of magnesium phosphate cement (MPC), fast hardening, high early strength, and excellent bonding strength. The effects of magnesium/phosphate molar ratio (M/P=3—8) and water-cement ratio (W/C=0.15—0.5) on the compressive and flexural strengths of MPC canvas were studied. The hydration morphology, product, and pore structure of MPC in canvas were analyzed by XRD, SEM, and X-CT, respectively. The optimization design method of MPC canvas was proposed. The experimental results showed that M/P significantly affected the mechanical properties of MPC canvas. When the molar ratio of M/P was 6, the compressive and flexural strengths of the MPC canvas reached the highest values of 26.65 MPa and 6.20 MPa at 28 d of age, respectively. W/C determined the hydration degree of MPC in canvas. Low or excessive W/C cannot ensure the integrity of MPC in canvas. 0.35 was the optimum W/C for MPC canvas, the compressive and flexural strengths of the MPC canvas reached the highest values of 26.90 MPa and 6.30 MPa at 28 d of age. The hydration products (K-struvite) reached the maximum content, and the interface between MPC and canvas fabric was compact. The porosity reached the minimum value of 7.63%, and the integrity of the MPC canvas was the optimum.

Key words： concrete canvas magnesium phosphate cement mechanical property hydration process

Published: 10 September 2024 Online: 2024-09-30

CLC number:

TU525.9

Fund:National Natural Science Foundation of China (52278252,52078181),and the Natural Science Foundation of Hebei Province (E2023202258).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LIU Xiongfei
	WANG Nan
	HAO Yifei
	LI Hui

Cite this article:

LIU Xiongfei,WANG Nan,HAO Yifei, et al. Study on Mechanical and Microscopic Properties of Magnesium Phosphate Cement-based Canvas[J]. Materials Reports, 2024, 38(17): 23090003-6.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.23090003 OR http://www.mater-rep.com/EN/Y2024/V38/I17/23090003

1 Daskiran M M, Daskiran E G, Gencoglu M. Construction and Building Materials, 2020, 264, 120224.
2 Munck D M, Tysmans T, Kadi M, et al. Construction and Building Materials, 2019, 229, 116832.
3 Li H, Chen H, Li X, et al. Powder Technology, 2019, 344, 937.
4 Bilisik K, Ozdemir H. Cement and Concrete Composites, 2021, 119, 104020.
5 Singh S B, Munjal P, Thammishetti N. Journal of Building Engineering, 2015, 4, 94.
6 Wang C L. Matrix optimization, fabric geometry effect, and durability of concrete canvas. Master's Thesis, Southeast University, China, 2021 (in Chinese).
王春霖. 混凝土帆布基体优化、织物构造影响及耐久性研究. 硕士学位论文, 东南大学, 2021.
7 Han F, Chen H, Jiang K, et al. Construction and Building Materials, 2014, 65, 620.
8 Han F, Chen H, Zhang W, et al. Journal of Industrial Textiles, 2016, 45, 1457.
9 Ma X, Mei Z, Ma P. Geotextiles and Geomembranes, 2022, 50, 708.
10 Zhang F, Chen H, Li X, et al. Composite Structures, 2017, 176, 608.
11 Zhang F Y. Mixture proportion optimization, FRP reinforcement and ballistic performance of concrete canvas. Master's Thesis, China, Southeast University, 2016 (in Chinese).
张方圆. 混凝土帆布配合比优化、FRP增强及抗侵彻性能研究. 硕士学位论文, 东南大学, 2016.
12 Bao B C. Preparation and performance of concrete canvas. Master's Thesis, Southeast University, China, 2013 (in Chinese).
鲍步传. 混凝土帆布制备技术与性能研究. 硕士学位论文, 东南大学, 2013.
13 Han F, Chen H, Li X, et al. Composite Materials, 2016, 50, 1937.
14 Yao Y, Wang H X, Diao G Z, et al. Journal of the Chinese Ceramic Society, 2019, 47(2), 207(in Chinese).
姚燕, 王宏霞, 刁桂芝, 等. 硅酸盐学报, 2019, 47(2), 207.
15 He R, Zheng X X, Wang Y, et al. Applied Chemical Industry, 2022, 51(5), 1495(in Chinese).
何锐, 郑欣欣, 王渊, 等. 应用化工, 2022, 51(5), 1495.
16 Fan J P. The preparation and performance of super high early strength cement-based materials. Master's Thesis, Southeast University, China, 2015 (in Chinese).
范建平. 超早强水泥基材料的制备与性能研究. 硕士学位论文, 东南大学, 2015.
17 Yang Q, Zhang S, Wu X. Cement and Concrete Research, 2002, 32, 165.
18 Fang B, Hu Z, Shi T, et al. Ceramics International, 2023, 49, 4001.
19 Jiang H L, Zhang J W, Li T, et al. Construction and Building Materials, 2022, 326, 126821.
20 Aldea C, Gries T, Roye A, et al. Textile reinforced concrete-state-of-the-art report of RILEM TC 201-TRC, Springer Press, Germany, 2006, pp. 292.
21 Luo H C, Ren X, Zhang Y, et al. Composite Structures, 2022, 280, 114922.
22 Wang A J, Yuan Z L, Zhang J, et al. Materials Science and Engineering, 2013, 33, 5058.
23 Liu J, Guo R H, Zhang Z Q, et al. Materials Reports, 2021, 35(23), 23068(in Chinese).
刘进, 呙润华, 张增起, 等. 材料导报, 2021, 35(23), 23068.
24 Xu B, Winnefeld F, Kaufmann J, et al. Cement and Concrete Research, 2019, 123, 105781.
25 Le-Rouzic M, Chaussadent T, Stefan L, et al. Cement and Concrete Research, 2017, 96, 27.
26 Zhang A L, Zhang L C, Yu J Y, et al. Journal of the Chinese Ceramic Society, 2020, 39(2), 422(in Chinese).
张爱莲, 张林春, 俞金艳, 等. 硅酸盐通报, 2020, 39(2), 422.