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Machine-made sand concrete and preparation method thereof
The invention discloses machine-made sand concrete and a preparation method thereof. The concrete is prepared from 120 to 200 parts of cement, 70 to 110 parts of coal ash, 750 to 1200 parts of gravels, 400 to 750 parts of machine-made sand, 150 to 220 parts of tap water and 5 to 8 parts of additives, wherein the machine-made sand comprises 150 to 200 parts of coarse sand and 200 to 550 parts of fine sand. The flowability (expansibility) is 550 +/-100 mm, the concrete is soft, easy to construct and pump, low in water-binder ratio and high in strength, and the adopted artificial machine-made gravel is environmentally friendly and capable of saving energy.
本发明公开了一种机制砂混凝土及其制备方法，该混凝土包括：水泥120～200份,煤灰70～110份,碎石750～1200份，机制砂400～750份，份自来水150～220份，外加剂5～8份；其中，机制砂包括粗砂150～200份，细砂200～550份。本发明流动性(扩展性)为550±100mm、松软又好施工泵送、低水胶比、强度高，采用的人工机制砂石，环保节能。
Machine-made sand concrete and preparation method thereof
The invention discloses machine-made sand concrete and a preparation method thereof. The concrete is prepared from 120 to 200 parts of cement, 70 to 110 parts of coal ash, 750 to 1200 parts of gravels, 400 to 750 parts of machine-made sand, 150 to 220 parts of tap water and 5 to 8 parts of additives, wherein the machine-made sand comprises 150 to 200 parts of coarse sand and 200 to 550 parts of fine sand. The flowability (expansibility) is 550 +/-100 mm, the concrete is soft, easy to construct and pump, low in water-binder ratio and high in strength, and the adopted artificial machine-made gravel is environmentally friendly and capable of saving energy.
本发明公开了一种机制砂混凝土及其制备方法，该混凝土包括：水泥120～200份,煤灰70～110份,碎石750～1200份，机制砂400～750份，份自来水150～220份，外加剂5～8份；其中，机制砂包括粗砂150～200份，细砂200～550份。本发明流动性(扩展性)为550±100mm、松软又好施工泵送、低水胶比、强度高，采用的人工机制砂石，环保节能。
Machine-made sand concrete and preparation method thereof
一种机制砂混凝土及其制备方法
WANG YUHONG (author) / SU HUASHENG (author) / LU JIA (author)
2020-09-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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