Dear Steemian Friend's.!!
Material is the main thing needed in the implementation of a development work. Strength of a building is determined by the readiness and processing of the right materials. In monitoring the material needs, the important thing to note is strong and durable and the type and shape and cleanliness and location of the placement / storage at the site of the development project.
Material required in accordance with the work items done, for the job of casting requires material in the form of cement, sand, gravel / split / broken stone and stone or rock stone (foundation). For reinforced concrete work required additional material in the form of iron with a diameter according to the needs of building strength.
Roof and ceiling work requires lightweight wood and steel materials and roofing materials.
MATERIAL EXAMINATION
In the process of casting the necessary materials are cement, sand and gravel / split (broken stone). As a standard field in general the best keriki / split (rock breaking) materials used are:
A. Hard / not fragile;
B. Angle-angle and not too round;
C. Avoid the use of gravel that is too thin / thin;
D. Clean from dust and soil;
E. Not porous.
MATERIAL PRINTING
The location of the placement of the material needs is very determining the strength, quality and timing of a job. Placement location is expected not far from the location of the stirring process and the intended work.
For example, at the time of casting if the material is too far away with the stirring place will lead to waste of execution time. Similarly, if the location of the mortar too far with the object to be cast will cause the decline in the quality of concrete due to mortar has started to harden.
By 
