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自密实混凝土在台湾推行已多年,本文中将使用经验及研究心得提供于工程界参考,其中配比设计系以一般混凝土工程需求强度20～40MPa为目标,并朝产制简易化、经济化的流程,使工程单位能易于将自密实混凝土广泛应用在土木建筑工程中,达到自动化及高质量化之原则。研究结果显示,添加适量之填充材料以适当比例混合,可产制20～40MPa的高性能混凝土,长期之抗压强度180天约为28天之1.2～1.4倍,卜作岚材料造成晚期强度适度提高,不影响结构韧性。粗粒料用量影响弹性模数及干缩、徐变等力学性质,柏松比值约介于0.12～0.18,因此不宜过分降低粗粒料用量。
Since the practice of self-compacting concrete in Taiwan has been for many years, this article will use the experience and research experience provided in the engineering reference, in which the ratio of the design of the general concrete engineering requirements of the intensity of 20 ~ 40MPa as the goal, and towards the production system simple and economical Process, so that engineering units can easily be self-compacting concrete widely used in civil engineering, automation and high quality of the principle. The results show that adding appropriate amount of filler in the proper proportion can produce 20 ~ 40MPa high performance concrete, the long-term compressive strength of 180 days is about 28 days 1.2 ~ 1.4 times, Buzuo Lan material caused by moderate increase in late strength, Does not affect the structural toughness. The amount of coarse aggregate affects the modulus of elasticity and mechanical properties such as shrinkage and creep. The ratio of cypress to pine is between 0.12 and 0.18, so the amount of coarse aggregate should not be too low.