Properties of Polyacrylic Ester Latex Modified Cement Mortar

Abstract:

The water reducing performance, retarding effect, air entrainment, flexural and compressive strength of polyacrylic ester (PAE) latex modified cement mortar were investigated with fixed flow values. The research shows that PAE latex has water-reducing performance. The amount of water used in modified cement mortar decreases with increasing dosage of PAE latex. Because of the retarding effect, PAE latex delays the hydration process of cement. PAE latex has a strong effect of air entraining, and the air content of fresh mortar can be controlled by suitable dosage of defoamer. With the same air content of fresh mortar, PAE latex can obviously improve the flexural strength of cement mortar, and has no adverse effect on its compressive strength.

• Periodical: Advanced Materials Research (Volume 687)
• Pages: 166-174
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.687.166
• Online since: April 2013
• Authors: Zhen Ping Sun, Dan Mei Ye, Le Feng Fu, Bo Cun Zheng, Zhong Jun Feng, Ming Chen
• Keywords: Cement Mortar, Flow Value, Modify, Polyacrylic Ester Latex

References

[1] Y. Ohama, Principle of Latex Modification and Some Typical Properties of Latex-modified Mortars and Concretes, ACI Materials Journal. (84) 1987 511-518.

DOI: 10.14359/2463

[2] M. U. K. Afridi, Y. Ohama, M. Zafar Iqbal, K. Demura, Water Retention and Adhesion of Powdered and Aqueous Polymer-Modified Mortars, Cement and Concrete Composites. (17) 1995 113-118.

DOI: 10.1016/0958-9465(95)00007-y

[3] Yoshihiko Ohama, Polymer-based Admixtures, Cement and Concrete Composites. (20) 1998 189-212.

DOI: 10.1016/s0958-9465(97)00065-6

[4] Liang Nai-xin, Polymer Modified Cement Concrete, Beijing, China Communications Press, 1995. (in Chinese)

[5] Zhong Shi-yun, Yuan Hua, Application of Polymer in Concrete, Beijing, Chemical Industry Press, 2003. (in Chinese)

[6] BUREAUL, ALLICHEA, PILVIN P, et al, Mechanical Characterization of a Styrene-butadiene Modified Mortar, Materials Science and Engineering(A). (308) 2001 233-240

DOI: 10.1016/s0921-5093(00)01980-8

[7] Li Jian, Wang Pei-ming, Wang Ru, Mechanical Properties and Bulk Density of Styrene-butadiene Copolymer Emulsion(SD622S) Modified Cement Mortar, Journal of Building Materials. 8 (2005) 705-709. (in Chinese)

[8] Wang Ru, Wang Pei-ming, Application of Polyacrylic Ester Latex to Cement Mortar, Journal of the Chinese Ceramic Society. 36 (2008) 946-949. (in Chinese)

[9] Zhong Shi-yun, Ma Ying, Mechanical Properties of Polymer-Modified Self-levelling Mortars, Journal of Building Materials. 8 (2005) 77-81. (in Chinese)

[10] Wang Pei-ming, Xu Qi, J.Stark, Mechanical Properties of Styrene-butadiene Emulsion Modified Cement Mortar Used for Repair of Bridge Surface, Journal of Building Materials. 4 (2001) 1-6. (in Chinese)

[11] Wang Ru, Wang Pei-ming. Influence of Styrene-butadiene latex emulsion and powder on the early process of cement hydration. The Proceedings of the Second National Academic Conference of Commercial Mortars. 11 (2007) 73-80.

[12] Xu Feng, Liu Lin-jun, Polymer cement-based building materials and applications, Beijing, China Building Industry Press, (2010).