Application of SAP and PEG as curing agents for ordinary cement-based systems: impact on the early age properties of paste and mortar with water-to-cement ratio of 0.4 and above

作者: Dipobrato Sarbapalli , Yash Dhabalia , Kaustav Sarkar , Bishwajit Bhattacharjee

DOI: 10.1080/19648189.2016.1160843

关键词:

摘要: The feasibility of utilising “Superabsorbent Polymer (SAP)” and “Polyethylene glycol (PEG)” as curing agents for ordinary cement-based systems with water-to-cement ratio .4 above has been investigated. investigation considers ratios .4, .5 .6 ages 3, 7 28 days. A commercially available SAP 300 μm average particle size a laboratory grade PEG an molecular mass 6000 have used agents. impact dosages on consistency, setting time degree hydration paste samples evaluated. evolution strength, water absorption retention characteristics studied using mortar compared respect to water- air-cured control. doses in the range .3–1.0% cement found be effective over full tested. admixed at rate .5–2.0% beneficial .50% dose .4...

参考文章(25)
Pietro Lura, Karen Friedemann, Frank Stallmach, Sven Mönnig, Mateusz Wyrzykowski, Luis P. Esteves, Kinetics of Water Migration in Cement-Based Systems Containing Superabsobent Polymers Application of Super Absorbent Polymers (SAP) in Concrete Construction. pp. 21- 37 ,(2012) , 10.1007/978-94-007-2733-5_4
Michael Mahoney, Jean-Francois Trottier, Innovative Synthetic Fibers Concrete international. ,vol. 23, pp. 23- 28 ,(2001)
Janis Justs, Mateusz Wyrzykowski, Frank Winnefeld, Diana Bajare, Pietro Lura, Influence of superabsorbent polymers on hydration of cement pastes with low water-to-binder ratio Journal of Thermal Analysis and Calorimetry. ,vol. 115, pp. 425- 432 ,(2014) , 10.1007/S10973-013-3359-X
J.S. Damtoft, J. Lukasik, D. Herfort, D. Sorrentino, E.M. Gartner, Sustainable Development and Climate Change Initiatives Cement and Concrete Research. ,vol. 38, pp. 115- 127 ,(2008) , 10.1016/J.CEMCONRES.2007.09.008
Marianne Tange Hasholt, Ole Mejlhede Jensen, Konstantin Kovler, Semion Zhutovsky, Can superabsorent polymers mitigate autogenous shrinkage of internally cured concrete without compromising the strength Construction and Building Materials. ,vol. 31, pp. 226- 230 ,(2012) , 10.1016/J.CONBUILDMAT.2011.12.062
Ole Mejlhede Jensen, Pietro Lura, Techniques and materials for internal water curing of concrete Materials and Structures. ,vol. 39, pp. 817- 825 ,(2006) , 10.1617/S11527-006-9136-6
Luís Pedro Esteves, Superabsorbent polymers: On their interaction with water and pore fluid Cement & Concrete Composites. ,vol. 33, pp. 717- 724 ,(2011) , 10.1016/J.CEMCONCOMP.2011.04.006
A.S. El-Dieb, Self-curing concrete: Water retention, hydration and moisture transport Construction and Building Materials. ,vol. 21, pp. 1282- 1287 ,(2007) , 10.1016/J.CONBUILDMAT.2006.02.007