Foam concrete containing phosphorus slag and preparation method thereof

Abstract

The invention relates to the field of building materials, and particularly discloses foam concrete containing phosphorus slag and a preparation method of the foam concrete. The foam concrete is prepared from a concrete mixture, wherein the concrete mixture comprises the following components in parts by mass: 400-410 parts of cement; 100 to 105 parts of the phosphorus slag; 40 to 50 parts of stone powder; 1-3 parts of a foaming agent; 120 to 130 parts of water; 3-5 parts of quick lime; 1-2 parts of calcium borate; and 0.3 to 0.7 part of ferric sulfate. The preparation method comprises the following steps: step 1, preparing a gelling material; step 2, preparing an intermediate mixing material; step 3, preparing a concrete mixture; and step 4, pouring, curing and forming. The foam concrete provided by the invention has the advantages of being capable of simultaneously maintaining relatively good strength performance and heat insulating performance; in addition, the preparation method disclosed by the invention has the advantages of simplicity and convenience in operation and easiness in industrial production.

Description

technical field [0001] The present application relates to the field of building materials, and more particularly, to a foamed concrete containing phosphorus slag and a preparation method thereof. Background technique [0002] Foamed concrete, also known as foamed concrete or lightweight concrete, foamed concrete is fully foamed by the foaming agent mechanically through the foaming system of the foaming machine, and the foam is evenly mixed with the cement slurry, and then passed through the foaming machine. It is a new type of lightweight thermal insulation material containing a large number of closed pores formed by natural curing through cast-in-place construction or mold forming with the pumping system. Foam concrete has been widely used in building construction because of its good thermal insulation performance, sound insulation and fire resistance and waterproof performance. [0003] Phosphorus slag is a kind of low melting point slag that is regularly discharged in th...

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that the main components of phosphorus slag are silicate and aluminate vitreous body, the content of vitreous body is 85%-90%, and it also contains a small amount of fine crystals, and there is false wollastonite in the crystalline phase , quartz, calcite, calcium fluoride, dicalcium silicate and tricalcium silicate, therefore, phosphorus slag has high mineral activity but no hydraulic activity, and substances without hydraulic activity are mixed into concrete Finally, it must be alkaline excited by the hydration product of cement clinker, calcium hydroxide, to produce a hydration reaction and form a gelling hydration product, which makes the early strength of the foam concrete easy to decrease

Images