Wet-mix plastering mortars prepared from stone chips and tailings sand

Abstract

The invention discloses wet-mixed plastering mortar prepared from stone chips and tailing sand. The wet-mixed plastering mortar comprises the following components in parts by weight: 18-22 parts of cement, 6-8 parts of coal ash, 5-7 parts of mineral powder, 22-25 parts of water, 100-125 parts of the stone chips, 20-35 parts of the tailing sand and 0.5-1.5 parts of a mortar additive, wherein the particle sizes of the stone chips are not greater than 4.75 mm and the stone chips comprise 2-3% of stone powder; the particle size of the tailing sand is not greater than 2.36 mm and the tailing sand comprises 5-10% of mud; the mortar additive is a thickener and comprises the following components in parts by weight: 2-4 parts of a sulfonic acid air entraining agent, 20-40 parts of a naphthalene water reducer, 2-6 parts of sodium gluconate, 0.5-2 parts of polypropylene staple fibers, 5-10 parts of latex powder and 20-40 parts of sodium bentonite. The stone chips and the tailing sand are adopted for replacing machine-made sand and river sand, so that the environmental pollution caused by waste stone chips and tailing sand is alleviated and the production cost of the mortar is reduced.

Description

technical field

[0001] The invention relates to a building raw material and a production process thereof, in particular to a plastering mortar, in particular to a wet-mixing plastering mortar prepared from stone chips. Background technique

[0002] Ordinary site-mixed mortar is mixed with cement, river sand, and clear water, and after hardening, it plays the role of bonding building materials together to form a solid whole. With the technological progress of the construction industry and the improvement of civilized construction requirements, the on-site mixing mortar has increasingly shown its inherent defects, such as unstable mortar quality, large waste of materials, single type of mortar, low degree of civilized construction, and environmental pollution. Therefore, it is imperative to adopt industrially produced ready-mixed mortar, which is an important measure to ensure the quality of construction projects, improve the modernization level of construction, and reduce urb...

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