Ingredients in building mortar

Most families or contractors who plan to build a building take the time to learn the construction process. Essential experiences in construction to ensure that the process goes smoothly and without any problems. Learning about building mortar is also an important issue you should keep in mind. Because mortar is a material used for many stages when building a house. Below are the necessary information related to construction mortar that you need to keep in mind.
Construction mortar concept

Construction mortar is an artificial building stone made up of main ingredients including binder, water, aggregates and additives. These ingredients are mixed in a certain ratio to create a quality mortar material.

In some cases the mortar is added with some additives to increase the properties of the construction mortar.

Characteristics of building mortar
The characteristic of construction mortar is the function of fine small particles. When building and plastering must spread a thin layer. The area in contact with the masonry surface, the plastered foundation surface and the air is quite large, so it quickly loses water. Therefore, it is necessary to use more water to mix mortar than concrete (concrete is a mixture of sand, building stone, cement and admixtures).

Because the mortar does not contain large aggregates, the strength resistance is lower than that of concrete of the same quantity and the same binder.

Ingredients in building mortar

As is known, grout is a composite composition consisting of many other materials:

Adhesives

To create the bond in the mortar, people use inorganic wall types such as Portland cement, mixed Portland cement, spring-grained Portland cement, puzolan Portland cement, air lime, hydrolime. , plaster for construction, etc. Using adhesives must ensure that the mortar has strength and stability in specific conditions.

Aggregates

Sand aggregate used in construction mortar reduces shrinkage and increases yield of mortar.
Sand used in mortar can be natural construction sand or artificial sand. The quality of sand has a direct effect on the strength of the mortar.

Additives

When mixing the mortar, it is also possible to add inorganic additives such as plastic clay, fine sand, puzolan stone powder, etc. The additive content in the mortar must be checked and tested.

Water

The water supplied to mix the grout should be clean, free of grease and oil. And must be provided in full during construction.

Types of building mortars

There are four types of building mortar as follows:

Lime mortar

Lime mortar consists of ingredients that are lime, water, cement, and sand mixed together. Used to build traditional level 4 and 3-room houses.

Grout

There are two types of cement mortar that is pure cement mortar consisting of cement mixed with water. Used for coloring and waterproofing locations of water tanks, latrines, flat roofs, etc.

The other type is sand cement sand mortar. VỮa has the main ingredients of cement, construction sand and water. Used for plastering, masonry, tiling or smoothing in many different positions.
Tri-composite mortar

It is a mortar that adds lime or plastic clay with a large amount of cement to increase the strength of the mortar. Mortars of this type are often used at load-bearing positions. Used in paving, paving, plastering almost everywhere.

gypsum mortar

It is a mixture of gypsum mixed with water. The amount of water added accounts for 65 to 90%. This type of mortar is used for interior and exterior plastering in locations that are not subject to moisture.

How to mix construction mortar

Construction mortar mix proportions are based on the packaging or on the builder’s experience. The ratio of sand and cement can be 3:1 or 4:1.

Tools to prepare: square shovel; fly; buckets; materials for mixing mortar, sand, cement, water, etc.

Procedure:

Mix sand and cement in the ratio as intended to form a homogeneous mixture. Add the water gradually and mix well until the mixture has a suitable paste.

If the mortar lacks water, it will dry quickly, and the tile cannot be adjusted. The solution is to add more water until it is enough to use.
If the mortar is too pasty, it will easily sag. The brick does not enter the position to be placed. The solution is to mix more dry cement and sand.

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