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Partitions placed at the same height in the construction of a wall, through a line used as guide.
Chemical compound (CaO), usually found in clinker is small proportions. In larger concentrations, greater than 2% probably, it may be dangerous because it produces expansions in hardened concrete.
Hard stone, abundant in nature, rich in calcium. It is the most important raw material for cement manufacture.
Lines and crosses marked on the ground where foundations and walls of construction will be.
Reinforced concrete element, placed on the foundations and used to distribute wall loads along the ground.
Greater length of a concrete slab. In a slab of 6mx4m, the long clear side will be the 6m side.
Cement whose contents of alkali (sodium and potassium oxides) do not surpass 0.6%, expressed as Na2O. This type of cement must be used when aggregates for concrete (sand and gravel) are potentially reactive with cement alkalis, causing jobsite impairment
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