Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Early-strength anti-cracking admixture for cement-stabilized base as well as preparation and using methods of early-strength anti-cracking admixture
The invention discloses an early-strength anti-cracking admixture for a cement-stabilized base. The early-strength anti-cracking admixture comprises the following raw material components in percentage by weight: 46.7-78.5% of aluminate cement, 7.8-29.6% of magnesium nitrate, 6.3-25.7% of anhydrous sodium sulphate, 5.5-17.3% of caustic soda, 0.8-5.5% of sodium oxalate, 3.6-9.8% of a water reducing agent and 6.9-32.8% of brucite fibers. A preparation method comprises the steps of firstly, respectively grinding all the raw material components by using a ball mill, and sieving by using a 300-mesh sieve; and then, uniformly mixing the sieved raw material components according to the weight percentage. A using method comprises the steps of firstly, weighing the early-strength anti-cracking admixture for the cement-stabilized base, wherein the dosage of the early-strength anti-cracking admixture for the cement-stabilized base accounts for 2-18% of the dosage of portland cement; then, mixing macadam, the portland cement and the early-strength anti-cracking admixture for the cement-stabilized base; and finally, adding water, and further mixing until forming a uniform cement-stabilized macadam material.
Early-strength anti-cracking admixture for cement-stabilized base as well as preparation and using methods of early-strength anti-cracking admixture
The invention discloses an early-strength anti-cracking admixture for a cement-stabilized base. The early-strength anti-cracking admixture comprises the following raw material components in percentage by weight: 46.7-78.5% of aluminate cement, 7.8-29.6% of magnesium nitrate, 6.3-25.7% of anhydrous sodium sulphate, 5.5-17.3% of caustic soda, 0.8-5.5% of sodium oxalate, 3.6-9.8% of a water reducing agent and 6.9-32.8% of brucite fibers. A preparation method comprises the steps of firstly, respectively grinding all the raw material components by using a ball mill, and sieving by using a 300-mesh sieve; and then, uniformly mixing the sieved raw material components according to the weight percentage. A using method comprises the steps of firstly, weighing the early-strength anti-cracking admixture for the cement-stabilized base, wherein the dosage of the early-strength anti-cracking admixture for the cement-stabilized base accounts for 2-18% of the dosage of portland cement; then, mixing macadam, the portland cement and the early-strength anti-cracking admixture for the cement-stabilized base; and finally, adding water, and further mixing until forming a uniform cement-stabilized macadam material.
Early-strength anti-cracking admixture for cement-stabilized base as well as preparation and using methods of early-strength anti-cracking admixture
SHENG YANPING (Autor:in) / SUN SHIWEI (Autor:in) / CHEN HUAXIN (Autor:in) / FANG JIANHONG (Autor:in) / XIONG RUI (Autor:in) / YANG XIAOFEI (Autor:in) / XU ANHUA (Autor:in)
27.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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