TY - JOUR
T1 - Development of a low-cost cement free polymer concrete using industrial by-products and dune sand
AU - Ismail, Najif
AU - Mansour, Moustafa
AU - El-Hassan, Hilal
N1 - Funding Information:
Financial support for this study was provided by the United Arab Emirates University under the grant 31N249. Assistance of Robin Debeer, Mohammed Al-Mawri, Muath Bassam, Abdalla El-Hashmi, Faisal Ali, and Abdelrahman Sallamin are gratefully acknowledged. Ashtech International supplied fly ash. Emirates Cement Factory provided slag and assisted with x-ray fluorescence testing.
Publisher Copyright:
© The Authors, published by EDP Sciences, 2017.
PY - 2017/8/9
Y1 - 2017/8/9
N2 - Alkali-activated polymer concrete (APC) can potentially reduce CO2 emissions associated to concrete production by 84%. The binder in APC herein was synthesized using a combined sodium silicate-sodium hydroxide solution (i.e., alkali activator), alumino-silicate rich precursor (fly ash) and slag. Light weight expanded clay and desert dune sand were used as aggregates. An overview of an experimental program was presented, which involved evaluation of fresh and mechanical properties of the produced APC and counterpart mortar (APM). Variables investigated were the fly ash to slag ratio and curing conditions. The curing regimes adopted herein included 24 hours of curing at ambient conditions, 30°C, and 60°C. The experimental program was undertaken in two stages, of these the first stage involved physical and chemical testing of constituent materials and the second stage involved testing or produced APM/APC. Reported were the setting times, workability, compression strength, strength development, flexural strength, tensile splitting strength, and plastic shrinkage strains. Relationship between strength results were investigated and effectiveness of codified predictive equations was evaluated.
AB - Alkali-activated polymer concrete (APC) can potentially reduce CO2 emissions associated to concrete production by 84%. The binder in APC herein was synthesized using a combined sodium silicate-sodium hydroxide solution (i.e., alkali activator), alumino-silicate rich precursor (fly ash) and slag. Light weight expanded clay and desert dune sand were used as aggregates. An overview of an experimental program was presented, which involved evaluation of fresh and mechanical properties of the produced APC and counterpart mortar (APM). Variables investigated were the fly ash to slag ratio and curing conditions. The curing regimes adopted herein included 24 hours of curing at ambient conditions, 30°C, and 60°C. The experimental program was undertaken in two stages, of these the first stage involved physical and chemical testing of constituent materials and the second stage involved testing or produced APM/APC. Reported were the setting times, workability, compression strength, strength development, flexural strength, tensile splitting strength, and plastic shrinkage strains. Relationship between strength results were investigated and effectiveness of codified predictive equations was evaluated.
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U2 - 10.1051/matecconf/201712003005
DO - 10.1051/matecconf/201712003005
M3 - Conference article
AN - SCOPUS:85028057306
SN - 2261-236X
VL - 120
JO - MATEC Web of Conferences
JF - MATEC Web of Conferences
M1 - 03005
T2 - 1st International Conference on Advances in Sustainable Construction Materials and Civil Engineering Systems, ASCMCES 2017
Y2 - 18 April 2017 through 20 April 2017
ER -