Construction basal layer material and construction method

Abstract

The invention provides a method for producing a construction basal layer material. The method comprises the following steps: 1) preparing the following raw materials by weight percentage: 92-94% of alkaline residue, 5-6% of silicon calcium slugs and 1-2% of a composite additive; wherein the composite additive comprises the following components by weight percentage: 50-70% of sodium fluosilicate, 20-25% of sodium sulfate and 5-25% of triethanolamine; and 2) mixing the materials in the step 1), stirring a mixture and uniformly mixing the mixture to obtain the material. The compressive strength of the construction basal layer material is excellent, by adding 1% of the composite additive, the unconfined anti-compression value can reach as high as 6.01 MPa, so that a purpose of using the alkaline residue with a maximized value is realized. The impermeability of the construction basal layer material is excellent, and the penetration coefficient is less than 1.5*10-8 cm / s. The application amount of the additive is little, the soda ash can be used with a maximized mode for producing the solid refuse alkaline residue, the construction method is simple, and the material has good practical application prospect.

Description

technical field [0001] The invention belongs to the field of civil engineering, and relates to a civil base layer material and a construction method, in particular to a road base layer material with good compressive strength and good anti-seepage performance and a preparation method thereof. Background technique [0002] Alkali slag, commonly known as white mud, is the waste residue in the production process of soda ash. Soda ash production enterprises with an annual output of 500,000 tons produce an average of 100,000 tons of soda ash slag. At present, the utilization of alkali slag is very limited. Alkali slag is usually used in fields such as alkaline earth bricks and mortar modifiers, and these fields consume little alkali slag. [0003] With the continuous advancement of the Western Development and the implementation of the "One Belt, One Road" strategy, road construction will usher in a new period of development. How to apply alkali slag to the field of roadbed constru...

AI Technical Summary

Problems solved by technology

At present, in terms of the use of alkali slag, there is no technology that can meet the requirements of high compressive strength and good anti-seepage performance at the same time.

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