聚羧酸系高性能減水劑在混凝土中之研發

Study on the Concrete Added High-Performance Water-Teducion Admixture of Polycarboxylate-Type

10.29679/VJ.201007.0016

詹榮鑑(Jung-Chien Chan)；楊紹洋(Shaw-Yang Tang)

聚羧酸 ； 減水劑 ； 混凝土 ； 坍流度 ； poly-carboxylic acid ； water reducer ； concrete ； slump flow

萬能學報

32期（2010 / 07 / 01）

197 - 210

繁體中文

After studied the mixture of concrete performance, strength and modulus of elasticity, under the different dosage (0%, 0.25%, 0.375%, 0.50%) of the polycarboxylate superplasticizer, the result shows that the flowing-slump values of polycarboxylic concrete increase in different extents when the water-reducer is added. After adding the water-reducer, both the concrete strength and the modulus of elasticity enhance compressive strength in different extents. The connection of compressive strength extents is: 0%＜0.25%＜0.50%＜0.375%. Using water reducer can improve the toughness of concrete. Its dosage under 0.2% can improve obviously water usage and the slump flow of concrete and at0.15% is the best for the slump flow of concrete. It is not various of the initial and final setting time will the additive quantity.

After studied the mixture of concrete performance, strength and modulus of elasticity, under the different dosage (0%, 0.25%, 0.375%, 0.50%) of the polycarboxylate superplasticizer, the result shows that the flowing-slump values of polycarboxylic concrete increase in different extents when the water-reducer is added. After adding the water-reducer, both the concrete strength and the modulus of elasticity enhance compressive strength in different extents. The connection of compressive strength extents is: 0%＜0.25%＜0.50%＜0.375%. Using water reducer can improve the toughness of concrete. Its dosage under 0.2% can improve obviously water usage and the slump flow of concrete and at0.15% is the best for the slump flow of concrete. It is not various of the initial and final setting time will the additive quantity.

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