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Grouting agent and preparation method thereof
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A technology of grouting agent and powder, which is applied in the field of concrete admixture and its preparation, and can solve problems affecting the durability of concrete
Inactive Publication Date: 2018-06-15
云南森博混凝土外加剂有限公司
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The grouting agent prepared by this invention has high filling capacity, durability and firmness during use, and can be used for one-time grouting construction without shrinkage. However, chloride ions, which are corrosive to concrete, are introduced during the preparation process. The presence of ions will directly affect the durability of concrete
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Embodiment 1
[0034] The grouting agent of the present invention and its preparation method, the grouting agent described in this embodiment is mainly designed to compare with 42.5 Portland cement and 52.5 Portland cement, and the specific preparation of this grouting agent Methods as below:
[0035] 1. Preparation method of grouting agent
[0036] (1) The cement used is ordinary Portland 42.5 cement
[0037] Step 1: Preparation of primary product of grouting agent
[0049] 2. Turn on the powderagitator, and control the halving speed of the agitator for the first 10 minutes to 30 rpm.
[0050] 3. When all the powder is basically stirred evenly, adjust the stirring speed of the powder agitator, adjust the stirring speed to 40 rpm, and continue stirring for 30 minutes.
[0051] 4. After stirring all the reaction raw materials evenly, move the initial product of the grouting agent to the storage tank for storage for later use.
[0052] Step 2: Compounding of grouting agent
[0053] 1. Take out part of the prim...
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Abstract
The invention provides a grouting agent and a preparation method thereof, and relates to a concrete additive and a preparation method thereof. The grouting agent prepared according to the method is applicable to the fields of grouting of equipment foundation, and anchoring grouting of ground anchor systems. The grouting agent comprises 7-12 parts of silica fume, 2-4 parts of fly ash, 3-5 parts ofpolycarboxylic acid, 1-1.5 parts of magnesiumoxide, 0-0.05 part of sodiumthiosulfate, 0.3 part of sodiumsulfate, 0.1-0.2 part of beta-naphthalene sulfonated formaldehyde condensates, 0.01 part of organic silicon, 0.1 part of rosin saponated substance, 0.2-0.3 part of sodiumcarbonate, and 550-650 parts of cement. According to the grouting gent prepared according to the method, the dose of the added components can be adjusted and controlled based on different types of the used cement and different use temperatures, so that the grouting agent prepared according to the method can work normallyin various environments and is not influenced by different types of cement.
Description
[0001] technology neighborhood [0002] The invention relates to a concrete admixture and a preparation method thereof. The grouting agent obtained by the method can be used in the fields of equipment foundation grouting, ground anchor system anchoring grouting and the like. Background technique [0003] The grouting agent is mainly prepared by mixing various materials such as high-efficiency water reducer, expansion agent, early strength agent, retarder, defoamer, plasticizer, etc. However, the grouting agent prepared by the present invention does not add the main volume-stabilizing component cement in the process of preparation. This is mainly because the usual grouting agent has certain limitations in the process of use and is easily affected by the type of cement and environmental factors. The impact on the use of grouting agent caused performance defects. [0004] Chinese Patent Publication No. CN103482899A discloses a channel grouting agent and its preparation method. I...
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