在水工混凝土中使用粉煤灰替代硅酸盐水泥

Proceedings of International Structural Engineering and Construction Pub Date : 2024-03-01 DOI:10.14455/isec.2024.11(1).mat-05

Krizia Isabella Bustillo Portillo, Jurgen Estuardo Martinez Carrillos, Michael Job Pineda Canales

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摘要

对粉煤灰（FA）作为硅酸盐水泥替代品的分析旨在证实其对水工混凝土抗压和抗折强度的影响。所用骨料的特性符合 ASTM 标准，混凝土的设计符合 ACI 标准，抗压强度为 4000 psi。添加 FA 的质量替代率从 10% 到 30%不等。28 天的抗压结果为：未添加替代物时 5360 psi，添加 10% 质量替代物时 3760 psi，添加 15% 质量替代物时 4770 psi，添加 20% 质量替代物时 3810 psi，添加 25% 质量替代物时 3820 psi，添加 30% 质量替代物时 2470 psi。28 天抗弯结果为：未置换时 660 psi，质量置换 10% 时 630 psi，质量置换 15% 时 660 psi，质量置换 20% 时 660 psi，质量置换 25% 时 650 psi，质量置换 30% 时 490 psi。因此，使用 FA 作为硅酸盐水泥结构材料的替代品

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THE USE OF FLY ASH AS A SUBSTITUTE FOR PORTLAND CEMENT IN HYDRAULIC CONCRETE

The analysis of fly ash (FA) as a substitute for Portland cement aims to corroborate its influence on the compressive and flexural strength in hydraulic concrete. The aggregates used were characterized by ASTM standards and the concrete was designed according to ACI for a f’c of 4000 psi. Dosing with FA was used in mass substitution percentages from 10% to 30%. The results at 28 days in compression are 5360 psi without replacement, 3760 psi for 10% of mass replacement, 4770 psi with 15% of mass replacement, 3810 psi with 20% of mass replacement, 3820 psi with 25% of mass replacement and 2470 psi with 30% of mass replacement. The 28-day flexural results were 660 psi without replacement, 630 psi with 10% of mass replacement, 660 psi with 15% of mass replacement, 660 psi with 20% of mass replacement, 650 psi with 25% of mass replacement and 490 psi with 30% of mass replacement. Therefore, the use of FA as a substitute for Portland Cement Structural

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Proceedings of International Structural Engineering and Construction

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