Durability design and performance of self-consolidating lightweight concrete |
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| Affiliation: | 1. Department of Construction Engineering, National Taiwan University of Science and Technology, No. 43, Section 4, Keelung Road, Taipei 106, Taiwan;2. Department of Civil Engineering, National Taiwan University of Science and Technology, De-Lin Institute of Technology, Taiwan;1. University of Salerno, Department of Industrial Engineering, Via Giovanni Paolo II n. 132, 84084 Fisciano SA, Italy;2. University of Liège, ArGEnCo Department, Quartier Polytech 1, Allée de la découverte 9, B-4000 Liège, Belgium;1. Department of Civil, Environmental and Architectural Engineering, Korea University, 1, 5-ga, Anam-dong, Seongbuk-gu, Seoul 136-713, Republic of Korea;2. Department of Urban and Environmental Engineering, Kyushu University, 744, Motooka, Nishi-ku, Fukuoka 819-0395, Japan;1. Civil Engineering Department, COPPE, Universidade Federal do Rio de Janeiro, P.O. Box 68506, 21941-972 Rio de Janeiro, RJ, Brazil;2. Laboratory of Civil Engineering, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, 28013-602 Campos dos Goytacazes, RJ, Brazil;1. Civil Engineering Department, Gaziantep University, 27310 Gaziantep, Turkey;2. Civil Engineering Department, Salahaddin University, Erbil, Iraq;3. Civil Engineering Department, Hasan Kalyoncu University, 27410 Gaziantep, Turkey |
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| Abstract: | In terms of the durability, the reduction in cement paste is crucial to both volume stability and long-term performance of concrete. The objective of this paper is to compare the performance of lightweight concrete under different w/cm ratio and different cement paste content. The slump and slump flow spread of fresh self-consolidating lightweight concrete (SCLWC) are designed to be within 230–270 and 550–650 mm, respectively. The test results indicate that the 91-day compressive strength of SCLWC is up to 56 MPa when cement content is 386 kg/m3 and water content is 150 kg/m3. If enough cement paste is used, then the less the paste amount and the denser the packing of aggregate, the higher the strength efficiency of cement and the electric resistance, and the lower the chloride ion penetrability capacity of SCLWC. |
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