What is the difference between mortar and concrete

Whether it's cement mortar.

Or concrete, which is necessary for building a house or decoratingWhat is the difference between cement mortar and concrete?

1. What is cement mortar

Cement mortar is a mixture of cement, sand, and water. It has no aggregate and cannot form a strong skeleton and is difficult to withstand strong loads. In construction projects, the use of cement mortar is to build foundations and walls, and to use them as adhesives for block masonry materials.

For example, brickstones, red bricks.

To use cement mortar; The second is for indoor and outdoor plastering.

Second, what is concrete

Concrete is made of cementitious material.

A general term for engineering composites that cement aggregates into a whole. Ordinary concrete is made of cement, coarse aggregate (crushed stone or pebbles), fine aggregate (sand). Admixture and water are mixed and hardened into an artificial stone.

Concrete has the characteristics of workability, high strength, deformability and durability. Compared to the two, the load-bearing capacity and durability of concrete are much greater. The concrete mixed with a large amount of mortar will affect the bearing cage force of the concrete structure, destroy the safety performance of the structure, and also make the homogeneity of the concrete poor, resulting in the inconsistency of the shrinkage of each part of the concrete, and the shrinkage cracks of the concrete are easy to occur, and the durability of the concrete such as impermeability and frost resistance will be reduced.

3. What are the differences between cement mortar and concrete?

1. The ratio of the two is different. If cement mortar is used, it does not include stones, but the concrete needs to be mixed with stones, because after having stones, the workability of concrete can be better improved. It increases the strength of concrete, and its mix ratio is higher than that of mortar.

2. The uses of the two are different. Generally speaking, cement mortar is used to repair wall panels and cement floors, mainly for surface use, including indoor and outdoor plastering, cement mortar is also used. If concrete is used, it is mainly used for the masonry of foundations and walls, and concrete is needed when pouring the house.

3. BothCompressive strengthIt's not the same. Because there are cement, sand, and stone in concrete, which are made in a certain proportion and can be cured, its compressive strength is relatively high. In addition, steel bars will be added, which can be used in the beam, slab, and column structures of houses.

But cement mortar is mainly used to bind materials, so its strength is not as high as concrete.

1. The difference between cement and mortar

1. Cement: It is a powdery, hydraulic inorganic gel material, which can be hardened in water and air, and tightly glue sand and stone and other materials together.

2. Mortar: It is used in construction, brick-laying to stick things, is according to the appropriate proportion of sand and lime plaster, cement and clay mixed with water, also called mortar.

2. Precautions:

1. The best ratio of cement and sand in cement mortar is 1:3, more cement will be wasted, and it is easy to crack, and the strength will be lower if there is less cement, and the durability of the mortar will be reduced.

2. Cement mortar is composed of lime, cement, fine aggregate and water, as well as active admixture or admixture, and is divided into cement mortar and cement mixed mortar.

3. In the building, cement mortar is used for foundation and wall masonry, which can be used as a binder for block masonry materials and used for indoor and outdoor plastering.

4. When cement mortar is used, it is also necessary to add some additives, such as microfoam and waterproof powder, to improve its viscosity. When stones are added to the cement mortar in proportion, it becomes concrete.

3. Classification of cement

1. General cement: Generally speaking, this kind of cement is often used in civil engineering and construction projects. General cement mainly refers to silicate, ordinary silicate, pozzolana silicate, and composite silicate and other types of cement.

2. Special cement: generally refers to cement with special purposes, such as cement for oil wells, fast-hardening Portland cement, etc.

The difference between cement slurry and mortar is the type of slurry, classification and composition.

First, the pulp is different.

1. Cement slurry (English name liquid cement) is the working fluid used in cementing, and the function of cement slurry is cementing. The cementing operation is to inject cement slurry into the annular air of the borehole wall and casing and let it return to a certain height, and then the cement slurry becomes cement stone to consolidate the borehole wall and casing.

2. Mortar is the adhesive material used for bricklaying on the building, which is made of a certain proportion of sand and cementing materials (cement, lime plaster, clay, etc.) and water, also called mortar, also used as mortar.

Mortars are commonly used in cement mortar, mixed mortar (or cement lime mortar), lime mortar and clay mortar.

Second, the classification is different.

1. Cement slurry.

According to the use, the cement slurry admixture and the external admixture can be divided into seven categories, namely, cement slurry coagulant, cement slurry retarder, cement slurry drag reducer, cement slurry expansion agent, cement slurry filter loss reduction agent, cement slurry density adjustment admixture, cement slurry leakage prevention admixture.

2. Mortar. According to the composition material, ordinary mortar can also be divided into:

Lime mortar. It is made of lime plaster, sand and water in a certain proportion, and is generally used for masonry and plastering layers that do not require high strength and are not subject to moisture.

cement mortar. It is made of cement, sand and water in a certain proportion, and is generally used for masonry, walls or floors in humid environments or water.

Mix mortar. It is made by adding appropriate admixtures such as fly ash and diatomaceous earth to cement or lime mortar to save the amount of cement or lime and improve the workability of the mortar. Commonly used mixed mortars are cement-lime mortar, cement-clay mortar and lime-clay mortar.

Mortar is a relatively thin slurry containing cement, and cement is a thicker mud.

Mortar is a building mixture made of cement mixed with minerals such as sand, while cement is a simple mineral building material!

Mortar generally refers to cement mortar, which is formed by mixing cement, water, and sand in a fixed proportion, which is also the general use of cement.

The main differences are that the properties are different, the composition is different, and the applications are different, as follows:

First, the nature is different.

1. Construction mortar.

Construction mortar is a mortar that bonds the materials of masonry blocks (bricks, stones, blocks) into a whole.

2. Concrete.

Concrete, refers to a material made of cementitious material.

A general term for engineering composites that cement aggregates into a whole. Usually speaking, concrete refers to cement concrete obtained by mixing cement as cementitious material, sand and stone as aggregate, and water, according to a certain proportion, and mixed to obtain cement concrete.

Second, the composition is different.

1. Construction mortar.

It is formulated by cementitious material, fine aggregate and water in a certain proportion.

2. Concrete.

It is formulated in proportion to cementitious material, granular aggregate (also known as aggregate), water, and, if necessary, admixtures and admixtures.

Third, the application is different.

1. Construction mortar.

It is often used for masonry (such as bricks, stones, blocks) structures, and the plastering of internal and external surfaces of buildings (such as walls, floors, and ceilings).

Joints of large wall panels, masonry walls, and bonding of decorative materials.

2. Concrete.

It is used in various civil engineering projects.

The above content refers to Encyclopedia - Building Mortar.

Encyclopedia - Concrete.

Make it different. Different uses.

The nature is different.

1. The mixed mortar is generally made of cement and lime plaster machine sand, and is generally used for masonry above the ground. The mixed mortar is due to the addition of lime plaster, so as to improve the workability of the mortar, and the operation is relatively convenient, which is conducive to the improvement of masonry compactness and ergonomics. Cement mortar is composed of cement, medium sand and water mixture, which is related to the proportion of materials.

2. Cement mortar is easy to crack, which is one of the reasons why mixed mortar is used for interior wall plastering instead of cement mortar. In addition, from the point of view of appearance, pay attention to the mortar in the transportation process, the water retention of cement mortar is not as good as that of mixed mortar. In the bumpy process of transportation, there is a layer of water on the surface of the cement mortar (the unmixed sand can be seen if the grade is not high), and the mixed mortar and workability and water retention are better than cement mortar.

3. Mixed mortar: After adding lime plaster, the workability and water retention of masonry mortar are better than that of cement mortar, which is convenient for construction and operation, and saves cement, but the strength is reduced, and the waterproof and moisture-proof ability is poor, and it is generally used for the parts that are not moisture-proof + above.

4. Cement mortar: mainly used in wet parts such as basement foundation hydraulic engineering. The strength of cement mortar of the same grade is higher than that of mixed mortar, so the specification stipulates that cement mortar should be used for corner protection of door and window openings.

5. In construction projects, cement mortar is first used as a masonry for foundations and walls, and is also used as a binder for block masonry materials; Then there is the plastering for indoor and outdoor use. The proportion of cement mortar for different purposes will be different, and the common store is to ensure the sand particle size, moisture content and actual strength of cement mortar.

6. The mixed cement mortar is made of lime, clay and other additives on the basis of cement mortar, and the mixed cement mortar has strong plasticity and easy operation; Cement mortar has one less kind of lime paste than water mixer mortar, and its strength is not high.

7. Or it can be said that the suitability of the mixed mortar is better, and the durability of the cement mortar is better. Lime mortar is generally used for decoration and the like. The mixed mortar is also supplemented with other materials such as:

Lime plaster), its masonry performance is good, commonly used in the wall "moisture-proof layer" above the brick masonry masonry. Cement mortar has better moisture-proof performance, and is commonly used in brick masonry masonry and wall plastering below the "moisture-proof layer" of the wall foundation.

Mortar is a slurry made by mixing sand as aggregate and gluing material water. Cement mortar is one of them, which is a mortar with cement as the gluing material.

The main difference between mortar and cement mortar is simply that the former does not have cement components, and the latter is a mixed slurry of cement and sand.

Mortar is a general term, divided into mixed mortar and cement mortar.

When building a house, you need a variety of materials, including concrete and mortar. So what's the difference between concrete and mortar? PChouse will take you to find out.

1. Different production: cement mortar is made of cement, water and sand mixed in a certain ratio; Cement concrete is made of cement, water, sand, and gravel, which is mixed according to the required mix ratio of bright socks.

2. Different uses: cement mortar can be used thinly to build block materials, build vertical load-bearing components or enclosure components of the wall, and the concrete can not be opened; Concrete can be poured into the mold by its own quantity into the vertical load-bearing members, can also be poured into the mold into beams, or various shapes of components. Cement concrete cannot.

3. Different properties: cement mortar cannot rely on its own strength to resist external loads, but relies on its own and masonry blocks to form a small bearing capacity; Concrete can provide a large compressive load capacity on its own.

4. Different: slightly larger volume of mortar, its shrinkage is large, the volume stability is insufficient, and the compressive bearing capacity is low; The concrete is mixed with the right stone (inert material), so that the large volume of concrete is stable and buried, the strength is increased, and at the same time, the concrete is cheaper under the same volume.