Charge for production of porous filler

FIELD: construction.

SUBSTANCE: charge for production of a porous filler contains, wt %: montmorillonite clay ground to powder condition 85.0-90.0, glauconite ground to powder condition 10.0-15.0.

EFFECT: increased strength of a porous filler produced from charge.

1 tbl

 

The invention relates to the production of porous aggregates for concrete.

Known mixture for the production of porous filler containing, wt.%: clay montmorillonite 35,0-38,0; coal 5,0-6,0; dolomite 36,0-50,0 [1].

The objective of the invention is to increase the strength of the porous filler, obtained from charge.

The technical result is achieved in that the mixture for the production of porous aggregates containing montmorillonite clay, additionally contains glauconite in the following ratio, wt.%: ground to a powder, montmorillonite clay 85,0-90,0; milled to a powder, glauconite 10,0-15,0.

The table below shows the composition of the mixture for the production of porous aggregates.

Table
ComponentsComposition, wt.%
123
Ground to a powder, montmorillonite clay90,0of 87.085,0
Ground to a powder, glauconite 10,013,015,0
Compressive strength, MPa3-43-43-4

In the blend for the production of porous filler use of montmorillonite clay, including Al-montmorillonite and Fe-montmorillonite (nontronite).

Components of the raw material mixture is metered in the desired quantities, separately grind to a powder (full pass through mesh No. 063) and mix. The resulting mixture is moistened to 18-24% and molded from the pellets of size 20-40 mm, which are dried to a moisture content of not more than 6% and calcined at a temperature of 1080-1100°C.

Sources of information

1. SU 1161500, SW 31/00, 1985.

The mixture for the production of porous aggregates containing clay montmorillonite, characterized in that it further contains glauconite in the following ratio, wt.%:

ground to powder
condition the clay montmorillonite85,0 to 90.0
milled to
powder Glauco is it 10,0-15,0



 

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