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A platform for research: civil engineering, architecture and urbanism
High-strength lightweight aggregate concrete and preparation method thereof
The invention provides a high-strength lightweight aggregate concrete and a preparation method thereof. The high-strength lightweight aggregate concrete is prepared from the following raw materials in parts by mass: 350-500 parts of cement, 450-650 parts of lightweight aggregate, 650-750 parts of natural river sand, 140-170 parts of water, 0-200 parts of coal ash and 2-3.5 parts of an additive. The preparation method comprises the following steps: (1) stirring and mixing lightweight aggregate, natural river sand and coal ash; (2) adding 1/2 of total water into a mixture obtained in the step (1), and stirring and mixing; (3) adding cement, a water reducer and rest water into a mixture obtained in the step (2), stirring, mixing, forming and then carrying out standard curing. The high-strength lightweight aggregate concrete has the strength grade of LC40-LC50, and the apparent density of 1700-1900 kg/m<3>, can effectively reduce the dead weight of a structure and the sectional size to increase the usable area, and is high in strength and favorable in working performance, vibration resistance and endurance quality.
High-strength lightweight aggregate concrete and preparation method thereof
The invention provides a high-strength lightweight aggregate concrete and a preparation method thereof. The high-strength lightweight aggregate concrete is prepared from the following raw materials in parts by mass: 350-500 parts of cement, 450-650 parts of lightweight aggregate, 650-750 parts of natural river sand, 140-170 parts of water, 0-200 parts of coal ash and 2-3.5 parts of an additive. The preparation method comprises the following steps: (1) stirring and mixing lightweight aggregate, natural river sand and coal ash; (2) adding 1/2 of total water into a mixture obtained in the step (1), and stirring and mixing; (3) adding cement, a water reducer and rest water into a mixture obtained in the step (2), stirring, mixing, forming and then carrying out standard curing. The high-strength lightweight aggregate concrete has the strength grade of LC40-LC50, and the apparent density of 1700-1900 kg/m<3>, can effectively reduce the dead weight of a structure and the sectional size to increase the usable area, and is high in strength and favorable in working performance, vibration resistance and endurance quality.
High-strength lightweight aggregate concrete and preparation method thereof
LI ZHEN (author) / LIU XIAOSHENG (author) / XU LI (author) / ZHAO YUHANG (author) / WANG QIULING (author)
2015-11-11
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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