Method for preparing wet-mixed mortar by utilizing waste residue nickel slag

Abstract

The invention discloses a method for preparing wet-mixed mortar by utilizing waste residue nickel slag. Waste residue nickel slag discharged by nickel product production enterprises passes through a 20-mesh mechanical sieve, and 100% by weight of a nickel slag product with the water content of 25% and 5-15% by weight of 325 general cement are uniformly stirred together through a mixing stirrer toobtain wet-mixed mortar; the product can be widely applied to various material mortars for constructional engineering construction, and has the characteristics of high strength, small shrinkage rate,good frost resistance, firm bonding strength, good water retention capacity and the like; the wet-mixed mortar nickel slag prepared by the method has the advantages that the utilization rate reaches 100%, the additional value is high, natural sand resources are completely replaced, the water is saved by 25%, meanwhile, the cost of land stacking, landfilling and the like is saved, the ecological environment is protected from secondary pollution and damage, and a new technical method is provided for waste slag nickel slag discharged by the nickel product production enterprises.

Description

technical field [0001] The invention belongs to the field of new technology products of building materials or high-efficiency energy-saving and environmental protection, and specifically relates to a method for preparing wet-mixed mortar by using waste nickel slag discharged from nickel product enterprises. Background technique [0002] Wet-mixed mortar refers to cementitious material, fine aggregate, admixture, water and various components determined according to performance. According to a certain proportion, after being measured and mixed in the mixing station, it is transported to the place of use by a mixer truck. The mortar mixture is stored in a special container and used within the specified time; the commonly used aggregates for wet-mixed mortar include natural quartz sand and machine-made sand. Due to the shortage of natural quartz sand resources, the high energy consumption and large dust generated during the mining of machine-made sand, and the serious damage to ...

AI Technical Summary

Problems solved by technology

[0004] The industrial waste nickel slag discharged from nickel production enterprises contains chemical components such as nickel elements. Most of these waste nickel slags are disposed of by stacking and landfilling a large amount of land, which is difficult to develop and utilize in large quantities. The current utilization rate is less than 2%. Long-term Stacking and landfilling will cause serious pollution and damage to the ecological environment, and at present, there is no use of waste nickel slag at home and abroad to prepare wet-mixed mortar, which is widely used in plastering mortar, ground mortar, internal and external wall mortar, special mortar, New technology of industrial and civil mortar such as tile mortar and waterproof mortar