Mix Mortar is main considering factor in masonary construction. Proper selection and mortar execution imperative processes. in market, different mortar designations available in standards. mix of cement, sand in mortar provides consistency in the performance and appearance of masonary construction. different mortar designations available in standards, classifed for residential buildings, commercial buildigs and industrial buildings. Concrete is composed of cement, sand, and gravel or other fine and coarse aggregate.
Mortar mix ratio and mortar is composed of cement and sand. When water is mixed in; with this aggregate, the cement is activated. Whereas concrete can stand alone, mortar is used to hold together bricks, stones or other such components. Mortar mix is the next generation masonry cement. The mixture of mortar cement is similar to masonry cement. mortar mix have high excellent workability, high capability of water retention, maximum high strength, load bearing capacity.
Mortar Mix Ratio
Mortar Mixing ratio would be 1:1.5:1 — 1 cement : 1.5 sand : 1 gravel stones with 0.4 water. If you use more water it will leave holes (porosity of the mortar), and if you use less water, it will not lead to hydration.
Mortar is used to stick things together, not stand alone. A ratio by weight of 0.5 water, 1 cement, 3 sand, and 3 gravel should make a fine concrete, although a little less water (0.4 by weight) would make stronger concrete. The same by volume ( ie. buckets) is a good ratio as well, 1/2 to 1 to 3 to 3 (or a little less water- too much water weakens the concrete, and there will always be some water content in the sand).
Mortar is the element that bonds bricks testing with various flexibility, bonding properties, and compressive strength services. as simple it mixed with fine sands and water, with lime added to improve the durability of the product. to use construction works adding water to this mix activates the cement so that it hardens, or cures, just as with concrete. when comparing with Mortar is not as strong as concrete and typically is not used as a sole building material. mixing can be done by mechanical methods or natural method by hand to. for better results Add the masonry cement, lime, and sand in the appropriate amounts to your mixing container, then add water on top of the dry ingredients. If you mix portland cement with sand without adding lime, the mixture will be very sandy and impossible to spread. It will still get hard, but it is very hard to use. Basically concrete is stronger and more durable so it can be used for structural projects such as setting posts whereas mortar is used as a bonding agent for bricks, stones
Check: Water Cement Ratio
Mortar Mixing Tips:
Always use Dry, Fresh cement Unopended cement bags. if bags are opended its tend to absorb environmental humidity, thus changing the water percentage of the mortar mix.
Mortar time is 90minutes only. after particular time, it losts some of characteristics. Mix mortar for not less than three minutes and not more than five minutes after the last materials have been introduced into the mixer or tub.
Maintain fresh sand materials, sand should be free of clay material; otherwise, it will create a paste that could expand and contract as the water dries up.
Time of setting. The time of initial set varied from 3 hr 20 min to 7 lu’ 30 min. All cements reached final set in less than 24 hr.
Mortar Mix Ratios
Ingredients for mortar mixes typically are specified by volume, in cubic feet (cu ft). The standard ratios for a yield of 1 cubic yard provided below.
Type N Masonry mortar is recommended for general use in non-load bearing walls as well as in exterior veneer walls not requiring high strength.
Portland cement—3.375 cu ft
Hydrated lime—3.375 cu ft
Sand 20.25—cu ft
Portland cement—5.0625 cu ft
Hydrated lime—1.6875 cu ft
Sand—20.25 cu ft
Type M Masonry Cement or Type S Masonry Cement can also be used in parging and stucco work.
Type S Masonry mortar is recommended for use in all masonry below grade as well as in exterior load bearing walls requiring high strength.
Portland cement—4.5 cu ft
Hydrated lime—2.25 cu ft
Sand—20.25 cu ft
Portland cement—2.25 cu ft
Hydrated lime—4.5 cu ft
Sand—20.25 cu ft
Caution & Precaution
Caution: Freshly mixed cement, mortar, concrete, or grout may cause skin injury. Avoid contact with skin whenever possible and wash exposed skin areas promptly with water. If any cement or cement mixtures get into the eyes, rinse immediately and repeatedly with water and get prompt medical attention. Keep children away from cement powder and all freshly mixed cement products.