Direct leaking stoppage fiber grouting material and preparation method thereof
A grouting material and fiber technology, applied in the field of grouting materials, can solve the problems of difficult to effectively control the expansion range and loss, difficult to control the surface settlement after injection, low consolidation strength, etc. Consolidation ability, the effect of improving the bonding performance
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Embodiment 1
[0018] A fiber grouting material for direct plugging, which is composed of the following materials in terms of weight percentage: Portland cement 20%, water glass 45%, fly ash 5%, water 25%, basalt fiber 3%, phosphate inorganic retarder Coagulant 2%.
[0019] The preparation method of the direct plugging fiber grouting material comprises the following steps:
[0020] According to the above mass ratio, the fly ash is firstly divided into two equal parts, one part is uniformly mixed with basalt fiber, Portland cement and water to obtain mixed solution 1, and the other part is uniformly mixed with water glass to obtain mixed solution 2; Slowly pour liquid two into mixed liquid one and mix evenly. The stirring speed is 50r / min, the stirring time is 5min, and the temperature of the mixing system is 20°C. S, the stone rate is above 75%, and the uniaxial compressive strength is above 4MPa-10MPa.
Embodiment 2
[0022] A direct plugging fiber grouting material, which is composed of the following substances in terms of weight percentage: Portland cement 18%, water glass 43%, slag 8%, water 26%, basalt fiber 4%, phosphate inorganic retarder 1%.
[0023] The mass percent of described slag is composed of: SiO 2 42%, Al 2 o 3 11.6%, CaO 32%, MgO 3.1%, and the rest are metal oxides of iron and sulfur.
[0024] The preparation method of the direct plugging fiber grouting material comprises the following steps:
[0025] According to the above mass ratio, the fly ash is firstly divided into two equal parts, one part is uniformly mixed with basalt fiber, Portland cement and water to obtain mixed solution 1, and the other part is uniformly mixed with water glass to obtain mixed solution 2; Slowly pour liquid two into mixed liquid one and mix evenly. The stirring speed is 40r / min, the stirring time is 5min, and the temperature of the mixing system is 25°C. S, the stone rate is above 75%, a...
Embodiment 3
[0027] A direct plugging fiber grouting material, which is composed of the following materials in terms of weight percentage: Portland cement 20%, water glass 40%, fly ash 10%, water 26%, basalt fiber 3%, phosphate inorganic retarder Coagulant 1%.
[0028] The preparation method of the direct plugging fiber grouting material comprises the following steps:
[0029] According to the above mass ratio, the fly ash is firstly divided into two equal parts, one part is uniformly mixed with basalt fiber, Portland cement and water to obtain mixed solution 1, and the other part is uniformly mixed with water glass to obtain mixed solution 2; Liquid two is slowly poured into mixed liquid one and mixed evenly. The stirring speed is 60r / min, the stirring time is 3min, and the temperature of the mixing system is 25°C. The fiber grouting material is obtained. S, the stone rate is above 75%, and the uniaxial compressive strength is above 2MPa.
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