Ardealite road base course material and preparation method thereof

Abstract

The invention discloses an ardealite road base course material and a preparation method thereof. The ardealite road base course material is prepared from the following raw materials in parts by weight: 40-80 parts of ardealite, 0.5-5 parts of diethylaminopropylamine, 0.1-0.5 part of a polycarboxylic acid water reducing agent, 10-40 parts of sandstone and 5-40 parts of water quenching slag. The preparation method comprises the following steps of: (1) dehydrating ardealite and crushing; (2) uniformly mixing the ardealite, sandstone and water quenching slag to obtain a material A; (3) uniformly mixing the polycarboxylic acid water reducing agent with the material A to obtain a material B; (4) adding the diethylaminopropylamine into the material B to obtain a material C; and (5) adding water into the material C, and stirring uniformly to obtain a finished product. In the method, the ardealite is taken as a major raw material, so that the utilization way of ardealite is expanded, the environmental protection stress is relieved, comprehensive utilization production energy consumption of ardealite is lowered, and the ardealite road base course material has a wide market prospect and is consistent with the requirements of recycling economy and sustainable development. The ardealite road base course material has the advantages of reasonable formula, simple preparation method and durability, and is suitable for road construction in ardealite-containing regions.

Description

technical field [0001] The invention relates to a phosphogypsum road base material and a preparation method thereof, belonging to the field of road construction materials. Background technique [0002] Phosphogypsum is an industrial by-product produced in the production process of wet-process phosphoric acid. It belongs to chemical gypsum and is an air-hardening material. Its characteristic is to soften when it meets water. Phosphogypsum has a large amount and pollutes the environment. At present, there are two types of phosphogypsum utilization, one is to fry hemihydrate gypsum first, then add water to change its crystal lattice to produce gypsum products; the other is to use phosphogypsum, cement or water-quenched slag, and quicklime as the main raw materials. Gypsum bricks produced by steam curing. The above two phosphogypsum utilization methods are for the production of building materials. There are certain technical difficulties and energy consumption in the productio...

AI Technical Summary

Problems solved by technology

So far, there is no patent application for using phosphogypsum as a road (road) base material