The Evaluation of High Calcium Green Polymeric Concrete

Abstract:

Article Preview

ncreasing environmental concerns of the cement industry brings about the requirement to the development of new binders. Polymeric concrete containing no cement provides great potential in reducing the global warming problems caused by CO2 emissions in Portland cement production. On the other hand, large amount of waste paper sludge ash produced annually in Malaysia has caused a disposal problem as they require a proper dumping process whereby it is very costly. The study focuses on the utilization of this high calcium Waste paper sludge ash (WPSA) in polymeric concrete containing recycled concrete aggregate (RCA). WPSA is chemically activated by a high-alkaline solution to form paste that binds aggregate in the mixture. Sodium hydroxide and sodium silicate solution are used as alkali activators of silica (Si) and aluminium (Al) in main binders. The polymeric concrete samples were exposed to external ambient condition and tested for compressive strength and shrinkage at 3, 7, 28, 56, and 90 days to identify the strength and deformation of the polymeric concrete. X-Ray Fluorescence (XRF) analysis performed to ascertain the chemical properties of the produced WPSA. The result of polymeric concrete yielded very minimum shrinkage. The measurement compressive strength is up to 7MPa at 90 days. Hence, this new green material will bring benefits to the environment and is of economical value.

Info:

Periodical:

Edited by:

Mohd Mustafa Al Bakri Abdullah, Liyana Jamaludin, Rafiza Abdul Razak, Zarina Yahya and Kamarudin Hussin

Pages:

776-780

Citation:

A. R. M. Ridzuan et al., "The Evaluation of High Calcium Green Polymeric Concrete", Advanced Materials Research, Vol. 626, pp. 776-780, 2013

Online since:

December 2012

Export:

Price:

$41.00

[1] Malhotra, V. M., Introduction: Sustainable Development and Concrete Technology, Concrete International, V. 24, No. 7, July 2002, p.22.

[2] Mehta, P. K., and Burrows, R. W., Building Durable Structures in the21st Century, Concrete International, V. 23, No. 3, Mar. 2001, pp.57-63.

[3] Mehta, P. K., Reducing the Environmental Impact of Concrete, Concrete International, V. 23, No. 10, Oct. 2001, pp.61-66.

[4] Mehta, P. K., Greening of the Concrete Industry for Sustainable Development, Concrete International, V. 24, No. 7, July 2002, pp.23-28.

[5] Malhotra, V. M., High-Performance High-Volume Fly Ash Concrete, Concrete International, V. 24, No. 7, July 2002, pp.1-5.

[6] Davidovits, J., Chemistry of Geopolymeric Systems, Terminology, " Geopolymer , 99 International Conference, France, 1999, pp.9-40.

[7] Malhotra, V. M., Making Concrete 'Greener' with Fly Ash, Concrete International, V. 21, No. 5, May 1999, pp.61-66.

[8] Hardjito D., On the Development of Fly Ash-Based Geopolymer Concrete, ACI Materials Journal, (2004).

[9] Vagelis G. P., Effect of fly ash on Portland cement systems: Part II. High-calcium fly ash, Cement and Concrete Research Volume 30, Issue 10, October 2000, Pages 1647–1654.

DOI: https://doi.org/10.1016/s0008-8846(00)00388-4

[10] Mehta P.K., Pozzolanic and cementitious by-products in concrete — another look, Proceedings of the 3rd International Conference on the Use of Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete, Trondheim , ACI (1989).

DOI: https://doi.org/10.1016/0958-9465(89)90023-1

[11] BS EN 1996-1-1. Eurocode 6: Design of masonry structures – Part 1-1: General – Rules for reinforced and unreinforced masonry, including lateral loading.

DOI: https://doi.org/10.3403/30092858