Sand for bricklaying - what is its role ?

What sand for masonry brick - the main contender?

River sand rises from the bottom and does not contain particles of clay that can be used for various concrete work.It is allowed to use this material as a component in the preparation of a solution for a laying of brick and plaster.

sand extracted from the bottom of the river is of three fractions: large, medium and small.Besides the fact that it is used as a sand for masonry mortar as the filler material can be used for concrete production, for the preparation of asphalt mixtures for the production of bricks, as well as laying roads.Very effective in the drainage device and as a filler for dyes and grout.

sand for masonry mortar - a feature cooking

In laying the usual solution appointment only apply compressive forces and displacements in the absence of efforts to break.This suggests that in order to perform the simplest masonry cement-sand mortar with a very low content of cement can be used.Builders call it "lean."Sand consumption per cubic solution of 4.3 part.

usually geometric proportions bricks are far from ideal, and to compensate for these irregularities using mortar joints.To ensure greater amplitude equalization sand before cooking the mixture should be sieved.Otherwise large fraction will prevent alignment of rows.

solution for masonry prepared by mixing three components: cement, water and sand.As mentioned above, the sand to be pre-screened well.From the amount of cement contained in the solution depends on the ductility directly associated with the convenience of laying.

reduce the cement content in order to increase the plasticity can be only up to certain limits, as it will inevitably affect the strength of the brick compound.The ductility can be increased by adding to the solution of special plasticizers, however their price is high enough.

achieve the desired result by adding to the mixture a bit ordinary washing powder.

consumption of sand per cubic solution - an important parameter for the quality of masonry

should be borne in mind that for each type of brick plasticity selected individually.Thus, if the brickwork is made of hollow bricks, there is a danger that the solution will unnecessarily moving easily penetrate into the brick cavity and its consumption would be unnecessarily high.

However, working with low mobility solution less convenient and takes much longer.Hence, knowing, as sand cubed solution should be to provide the necessary strength, can achieve the desired mobility of the addition of detergent or softener.

also knowing what the sand for masonry bricks fits well, and how it should be on one cube solution, you can go to cook the mixture for masonry.Usually it is preparing by dry mixing the cement and sand, and the consumption of water is added.

Already after a couple of hours after the preparation of the solution becomes unusable, so it should cook certain meals.Based on the fact that the laying of bricks is less than 2 minutes, you can accurately calculate the portion of one batch.