For ensuring connection of natural stone, brick or concrete blocks mineral binding materials are used. As a result of water addition, they turn when drying into integral stone, strong connecting among themselves the materials used in construction. The knitting mineral materials widely are used at laying of brick, ceramic tile, concreting of rooms, paths, access roads. The parent binding material is cement.
It is required to you
- For mixing of cement or cement slurry it is required to you: cement, sand, clay, water, big metal capacity or mechanical concrete mixer, square-faced shovel, chopper garden.
Instruction
1. Let's consider the most often used type of binding materials – cement. It is basic element of water mortars and various concrete mixes. Merits of cement are its fortress and speed of drying. Cement is subdivided into two types: aluminous and portland cement. Treat characteristics of aluminous cement: heat resistance, speed of drying and high water tightness. Generally this group is used in industrial construction. For private construction various grades of portland cements are used. Classification of grades of cement happens on fortress when hardening and can be: low-branded – it is lower than 300, so-called privates - 300-400. Brand 500 belongs to discharge of the increased fortress, and 500-600 to high-strong. It is not difficult to determine cement fortress visually. The it is more dark, the more strong. In everyday life all grades of cement are called – cement, and portland cement call cement of high brand (500-600). Features of marking of cement: PC or M - portland cement; D 0 - cement without additives; D 20 - the cement containing 20% of additives; B - rapid-hardening cement; N - cement on the basis of clinker of rated structure (rated cement); SPC - blast furnace slag cement; PL - cement plasticization.
2. For grout mixing you will need to find out to what purposes it to be applied: for bricklaying, for filling of path at the house, for wall plaster. To be necessary for you for bricklaying solution in the ratio 1 to 4, that is it is necessary to take and fill up 1 bucket of cement and 4 buckets of sand in capacity. To take garden chopper and in a dry form to mix ingredients on layers, mixing chopper mix through each 5 centimeters. Mix so that the homogenous mixture has turned out. Then add a little water, mix, add water until solution becomes viscous and sticky. Its consistence has to be as thick semolina porridge. Now they can fasten bricks safely.
3. For mixing of mortar for filling of garden path make solution with ratio 1 to 3, that is 1 bucket of cement and 3 buckets of sand. Stir chopper in a dry form, then add water until solution does not become liquid as cream. Fill in this solution in in advance prepared timbering, having broken it into small squares thin boards. If you fill in path with one monolith, then it will soon crack. Approximately in 2 hours prepare laitance. For this purpose take cement, add to it water until it does not become as milk. Leyte is milk on path and smear brush. This process is called ""iron plating"", the path will become gray-green and very strong on surface. For zashtukaturivaniye of walls it is enough to make solution 1 to 5 in consistence of liquid semolina porridge.