Experimental Research on Alkaline Residue Concrete Dry Shrinkage Performance

Abstract:

Shrinkage performance of alkaline residue concrete is researched in different conditions, it found that different alkaline residue proportions concrete dry shrinkage increases with the growth of the curing time increasing, but the dry shrinkage changes of different alkaline residue proportions are different, the dry shrinkage of low proportions of 8-12% concrete is similar with that of plain concrete, therefore, to the high content of concrete, its dry shrinkage significantly increase. The dry shrinkage of low incorporation proportion (8-12%) concrete increases quickly in the initial curing period (3-7 days), its shrinkage rate changes stabilized in the subsequent conservation period; to high incorporation proportion (20-30%) concrete, its dry shrinkage increases rapidly in the curing period of 7-14 days, then it stabilized. compared with the low proportion of concrete, its growth is faster in the late curing period. Water-cement ratio is very important factor of the shrinkage performance of concrete, dry shrinkage curve of alkaline residue concrete present concave, when water-cement ratio are in 0.52-0.57, the shrinkage of alkaline residue concrete is minimum.

• Periodical: Advanced Materials Research (Volume 1088)
• Pages: 603-607
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1088.603
• Online since: February 2015
• Authors: Yuan Zhang*, Jun Cao
• Keywords: Alkaline Residue, Concrete Dry Shrinkage, Water Cement Ratio

References

[1] Yang Jiu Jun, Xie Wu, Zhang Lei. Study on experimental preparation of cement mortar incorporating fly ash-soda residue, Bulletin of the Chinese Ceramic Society, October (2010).

[2] Xiao Rui, Min，Zhang Xiong. Effect of mix proportion of concrete on drying shrinkage, Concrete. (2003).

[3] Zeng li, Zhao Lei. Dry Shrinkage Features of High strength Recycled Concrete, Journal of Civil Architectural&Environmental Engineering. Vo1. 32NO. 4 Aug. 20.

[4] GBT 50082-2009 Ordinary concrete long-term performance and durability test method standards.

[5] Pacheco-Torgal Fernando, Jalali Said. Resistance to acid attack, abrasion and leaching behavior of alkali-activated mine waste binders, Materials and Structures, 2011, 44: 487–498.

DOI: 10.1617/s11527-010-9643-3

[6] Li Yue Yong, Yan Shu Wang, Zhang Jin Yong, Yin Xiao tang. Engineering properties and microstructural features of the soda residue, 1999, 21(1).