特殊水泥 CPA 对废玻璃粉基水泥基材料特性的影响:普唑烷活性和热处理

IF 1 Q4 ENGINEERING, CIVIL Journal of Applied Engineering Sciences Pub Date : 2023-12-01 DOI:10.2478/jaes-2023-0019
B. Aissat-Arab, R. Mehaddene, Y. Boucheneb
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引用次数: 0

摘要

摘要本研究的主要目的是评价养护方法对废玻璃粉作为补充胶凝材料抗压强度的影响。本研究对废玻璃粉(GP)作为部分替代特种水泥(阿尔及利亚水泥,不添加CPA)的高性能胶凝材料的物理力学特性进行了实验研究,改变GP的百分比为10%,20%和30%(按水泥重量计),养护方法:20±2°C水养护和100°C烘箱加速干燥的热养护(烘烤)。对40x40x160 mm砂浆试样进行脱模后烘干处理,然后露天保存,另一半在淡水中保存,以评价其在不同龄期(7、28、90和365天)的可持续性和活性指数(I)。抗压强度结果表明,两种养护方式的抗压强度均随龄期的增加而增加,但经过烘烤的混合料的抗压强度均不如同种混合料在不同龄期的淡水养护强度。根据抗压强度和磷灰石活性指数I的结果,GP替代水泥的最佳率为20%。
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Effect of Special Cement CPA on the Characteristic Properties of Cementitious Materials Based Waste Glass Powder: Poozolanic Activity and Heat Treatment
Abstract The main purpose of this study is to evaluate the effect of curing method on the compressive strength of waste glass powder as a supplementary cementitious material. This work presents an experimental study on the physico-mechanical characterization of waste glass powder (GP) as partial replacement of special cement (Algerian cement without additions CPA) based high performance cementitious material, varying the percentage of GP by 10%, 20% and 30% (by weight of cement), the curing methods: water curing at 20± 2 °C and heat curing by under accelerated drying in an oven at 100 °C (stoving). Half of the mortar samples 40x40x160 mm were treated with stoving just after demolding then kept in the open air, the other half was kept in fresh water in order to evaluate their sustainability and index of Poozolanic Activity (I) at different ages: 7, 28, 90 and 365 days. The compressive strength results showed that there is an increase in compressive strength with the increase in age of the two curing methods but the strength of all mixtures which have been stoved is inferior to those of the same mixtures preserved in fresh water at different ages. The best rate of replacement of the cement by GP is 20% following the results obtained for the compressive strength and Poozolanic Activity Index I.
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自引率
9.10%
发文量
18
审稿时长
12 weeks
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