How to Mix Brick Laying Mortar
In brick laying, mortars are mixed for joining each personel unit in the wall. The general quality is to have a mix with good consistency. This allows the blocks to sit correctly within each course of the wall. The mortars consist of ordinary Portland cement, lime and sand. This materials should be of good quality to avoid staining the bricks while and after construction. This mortars allow for a durable wall with good weather properties after construction.
The brick mortar should not contain impurities in the sand. This are acids or organic materials in the sand. The sand should be tested with a glass of water. After allowing the water and sand to mix in the glass, the level of silt is checked. This should not exceed two millimeters. The water used should be clear of any salts dissolved. This cause the wall to white substances as the salts leave the water similar to efflorescence. All water used should be safe drinking water.
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The mortar used in the brick laying should be used within forty five minuted of mixing. This should be mixed in the ratio of one part cement, one part lime and six parts sand. Lime may be added in the ratio of two parts lime to eight parts of sand. The mortar should be mixed mixed three times dry before adding water. It is foremost to only add water to the intended usable mortar. Excessive water is not advisable as it runs off with the cement or lime. When water drips on the sides of the bricks, stains are left when dry which are difficult to clean.
The lime proportion in the mortar should be kept low. This is because it causes slow setting of the mortar, principal shrinkage and has very low strength. This any way can be used for training artisans or in schools offering construction lessons. It can be used for sample walls as they can be authentically demolished. Mortars for external works should be thoroughly mixed to allow leave of moisture to preclude efflorescence or discoloration. The brick mortar mix can be used for general walling works with clay product.
How to Mix Brick Laying Mortar
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