Limestone

Processing Technology

3D Map of MTW Grinding Plant

3D Map of XZM Grinding Plant

3D Map of LM Grinding Plant

Application of Limestone powder

Highway Asphalt Desulfurization Cement, Mortar and Concrete

Limestone ore powder plays a filling role in the asphalt mixture, the purpose is to reduce the gap of asphalt concrete, reduce the amount of cement, improve the work ability of concrete, and reduce the heat of hydration.Asphalt mixing plants generally use limestone powder of about 180-200 mesh to improve the adhesion between asphalt and aggregate.

"Highway Asphalt Pavement Construction Technical Specifications" JTG F40-2004

Limestone sub-technical requirements		Technical index
Water Content ≤	2.5	2.45
Appearance		No lumps
Particle size range	＜0.6mm	100
	＜0.15mm	90-100
	＜0.075mm	75-100

The mainstream desulfurization method currently used in thermal power plants is flue gas desulfurization

Limestone for Desulfurization Industry DB13/T2032-2014 Standard

Project	Index
	Grade Ⅰ	Grade Ⅱ		Grade Ⅲ
Appearance	gray white powder with basically the same color and no impurities
Caco3	≥94	≥92	≥90
MgCO3	≤5.0
Particle size	325 mesh D90

Limestone is the main raw material for manufacturing cement, lime and calcium carbide, and it is the indispensable flux limestone in metallurgical industry

Limestone cement, mortar and concrete Industry GB / T 35164-2017 standard

Item			Index
MB value	Grade Ⅰ		≤0.5g/kg
	Grade Ⅱ		≤1g/kg
	Grade Ⅲ		≤1.4g/kg
Particle size	A		325 mesh D85
	B		300 mesh
Flow ratio			≥95%
Caco3			≥75%
Compressive strength		7d	≥60%
		28d