Prestress pipeline grouting agent, preparation method and grouting material

Abstract

The invention relates to the technical field of grouting agent preparation, and particularly relates to a prestress pipeline grouting agent, a preparation method and a grouting material. The prestresspipeline grouting agent comprises the following components in parts by weight: 35-43 parts of mountain flour, 8-12 parts of a water reducer, 8-12 parts of a plastic expanding agent, 8-12 parts of a defoaming agent, 8-12 parts of silicon powder and 8-15 parts of quartz sand. Tests show that the grouting agent prepared by adopting the formula can be well compatible with various kinds of cement, theprepared grouting agent is more stable and balanced, and breaking strength and compressive strength at a later stage are both higher. Through the adoption of the formula, the content of the water reducer is reduced compared with the content of a water reducer in the prior art. The water reducer is an organic substance and can easily cause pollution in a production process, so that greenness and environment friendliness are achieved through the reduction of the usage amount of the water reducer.

Description

technical field [0001] The invention relates to the technical field of grouting agent preparation, in particular to a prestressed pipeline grouting agent, a preparation method and a grouting material. Background technique [0002] Prestressed pipeline grout is suitable for grouting of post-tensioned prestressed concrete channels in roads, railways, municipal bridges and nuclear power plants. In the early days, the grouting agent used in domestic prestressed pipeline grouting was generally pure cement slurry. During construction, cement, water, water reducing agent, expansion agent, etc. were used for on-site preparation. The on-site grouting agent must meet a certain ratio. In order to meet the maximum moisture rate, viscosity and compressive strength after solidification of the grout, but there are many types of cement, the ratio should be adjusted according to the performance of cement, water reducing agent, and expansion agent, which is prone to compatibility. Poor perfo...

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Problems solved by technology

[0003] In order to ensure the quality of the grouting agent, many construction workers prepare the prestressed pipeline grouting agent in the factory in advance, then mix it with cement to form a sub-slurry, and then transport it to the site for construction, which can well control each component. Proportioning to maintain the good comprehensive performance of the grout, but the transportation cost is greatly increased, and the viscosity must be calculated according to the transportation time, which further increases the production cost

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