cement block
Concrete block into pieces for the construction of buildings or walls or ceilings that are usually users. Concrete blocks the size and dimensions and with different materials depending on the need, but in recent years they have made in standard sizes with standard Zkhamthay up.
Building construction
In making these blocks of cement, sand, gravel, water casting method used and the workshops that produce this type of blocks in general terms Blvkzny said.
Typical Applications
Concrete blocks are usually classified into two categories: heavy and light.
Heavy blocks: the block size and the thickness is larger than the block style for use in building structures or walls used for landscaping.
Style blocks: these blocks are used in roof crossbars and granules used in them is slightly different than the heavy blocks and are lighter in weight.
Advantages
The benefits of this block
Chinese wall materials with much higher speed and structures of brick or similar smaller pieces.
The price of the final construction of the brick walls are a little cheaper.
Disadvantages
Have low durability against moisture.
The amount of waste and transportation and building walls or roofs in the Camel time high.
The characteristics of a standard block
Dimension
Nominal size hollow concrete blocks to construction materials Iranian standard ISIRI 70-1 cm as follows:
Length width height
30 20 40
25 20 40
20 20 40 most common Chinese Wall
15 20 40
10 20 40
pushing resistance
Iran, ISIRI 70-1 standard building materials compressive strength between 120-140 kilograms per square centimeter and a porter block Ghyrbabr block 35 kilograms per square centimeter is the maximum water absorption Babar blocks equivalent to 208 kilograms per cubic meter.
Special Weight
Specific gravity 2000 to 2200 kilograms per cubic meter block bearing Category 2/2 and 4/2 block class Babar Babar 2200 to 2400 kilograms per cubic meter and if the specific weight of 2000 kg per cubic meter block is less than classifying it as non-bearing block style their classification.
