How many square meters of sand and gravel do you need for one side of concrete?

One cubic of concrete costs 400 kilograms of cement, 400 kilograms of sand, and 1,400 kilograms of stone.

We know that concrete is the main material used to build a house, and it is made from a mixture of sand and cement and stones. It is very strong after solidification, so it is regarded as the best material for construction, and it is still used today. But few people know how much sand and gravel it takes to mix a cubic meter of concrete.

Many people think that in order for concrete to be strong, they need to use more cement or sand. In fact, this is not right, if there is too much cement and sand mixed in, it will be very dry and cannot be used at all, even if enough water is added, it will not have the desired effect. Therefore, it is necessary to decide how much ratio is needed according to the actual situation.

The ratio of sand and gravel in the market is also different. Nowadays, this specification is mostly used: one cubic meter of solid concrete requires about 700 kilograms of sand, about 180 kilograms of water, and about 300 kilograms of cement.

At this time, the density of sand is generally one cubic centimeter gram, and the density of stone at this time is one cubic centimeter, and the sand required at this time is about cubic meters. The stone needed is cubic meters, that is, about half a carton of sand that we usually use. Of course, the quality used in different sand is also different, because fine sand will add about 10 kilograms of weight.

If the sand is coarse, the weight should be reduced accordingly. There are also requirements for the size of some gravel, so everyone, when mixing concrete, you must make a decision according to the actual situation you use.

In fact, there are still a lot of concrete materials used in construction on the construction site, because when many materials are mixed together, they look much smaller than the original volume and weight. The proportions we just mentioned are just the majority of what is used for ordinary building strength. However, we can see that for different qualities of cement, cement also has its own label, and the higher the cement grade, the greater the proportion of water and cement.

This means that the stronger you want to design, the less water and cement you will use.

So now you know that there is no strict implementation of the standard, but according to the actual situation at any time to make adjustments, in the society the general ratio is: a cubic meter of concrete required material situation is 700 kg of sand, 180 kg of water, about 300 kg of cement, 1260 kg of sand. This ratio is only the more common ratio used in building construction now, of course, you can also adjust the proportion of concrete you need.

It's not that the more material used, the stronger the resulting product will be. There is no fixed standard for implementation. Now there are some popular ratios on the market, and if one day you find a better and stronger ratio, you can also promote it.

One cubic meter of solid concrete requires about 700kg of sand, 180kg of water, and 300kg of cement. Many people think that more cement or sand is needed to strengthen the concrete, but in fact, if you mix too much cement and sand, it will reduce the strength, so it is necessary to decide the ratio to be used according to the actual situation.

Before pouring concrete, it is necessary to check the stability of the formwork supports, especially the stability of the cantilever formwork supported by the gustry. During the concrete pouring process, pay attention to the formwork and support conditions, and report any anomalies.

Hello, according to our regular catalpa three plates of sand a pull of lime.

According to the large-scale project, it is: one side of the concrete to: water:

180kg m3, cement: 230kg m3, sand: 780kg m3, stones:

1240kg/m3。Concrete, for short"Concrete (tóng).": refers to the general term of engineering composite materials that cement aggregates into a whole by cementitious materials.

The word concrete usually refers to the use of cement as cementitious material, sand and stone as aggregates; Cement concrete, also known as ordinary concrete, is widely used in civil engineering engineering when it is mixed with water (which can contain admixtures and admixtures) in a certain proportion and is mixed to obtain cement concrete.

Because the strength level of concrete is different, there will be different mix ratios, so the number of cement, sand, and seeds is different. For example: 1, C50 concrete:

Cement 480kg, sand 650kg, gravel underwater concrete: cement 383kg, sand 789kg, gravel pumping concrete: cement 370kg, sand 719kg, crushed stone ordinary concrete:

353kg of cement, 691kg of sand, 1128kg of crushed stone, etc.

Concrete pump, which is composed of pump body and conveying pipe. It is a kind of machinery that uses pressure to continuously transport the concrete along the pipeline.

It should be used in housing construction, bridge and tunnel construction. At present, it is mainly divided into gate valve concrete pump and S valve concrete pump. The other is to install the pump body on the chassis of the car, and then equip the retractable or flexib distribution rod to form a pump truck.

Concrete strength: C20, slump: 35-50mm, sand type:

Medium sand, preparation strength, the maximum particle size of the stone is 40mm, and the cement strength is 32Level 5, dosage per cubic meter; Cement 331kg m3 Sand 656kg m3 Crushed stone 1218kg m3 Water 182kg m3

Concrete strength: C25, slump: 35-50mm, sand type:

Medium sand, preparation strength, the maximum particle size of the stone is 40mm, the strength level of cement, the amount per cubic meter; Cement 372kg m3 Sand 576kg m3 Crushed stone 1282kg m3 Water 175kg m3.

If it is 1 cubic meter of C30 concrete, 1 cubic meter of concrete is about equal to a ton.

A cubic meter of C30 concrete needs to be packed with cement, cubic meters of yellow sand, cubic meters of stones and cubic meters of water.

One cubic of C30 concrete requires 270 kg of cement, 700 kg of yellow sand, 1,326 kg of gravel and 192 kg of water.

1 cubic meter C30 concrete raw material mass = 270 + 700 + 1326 + 192 = 2488 (kg);

Cement is 50 kg 1 bag, so cement needs 270 50 = bag;

The density of yellow sand is about 1650 kg cubic meters, 700 1650 = cubic meters;

The density of stones is about 1550 kg cubic meters, 1326 1550 = cubic meters;

Factors such as different slump sizes, different sand moisture content, gravel particle size grades, etc., also affect the mix ratio of concrete.

The density of C30 concrete will vary due to the different mix ratios, if the cement is selected, the cement quality will be reduced, the quality of water will also be reduced, and the amount of sand and gravel will increase a little. Therefore, the density of C30 concrete is closely related to what kind of raw materials are selected.

The different slump degree of C30 concrete will also have an impact on the density of C30 concrete, the collapse degree is large, the amount of sand and gravel is also changed when the cement and water are used.

How many squares of concrete do you need on one side? Sand and stones. It depends on what you do with it, in general, the concrete is 3 for sand, and the stone seeds are for occupancy. 3%.The other is cement.

Concrete strength: C20, slump: 35-50mm, sand type: medium sand, preparation strength, the maximum particle size of the stone is 40mm, and the cement strength is 32Level 5, dosage per cubic meter;

Cement 331kg m3 Sand 656kg m3 Crushed stone 1218kg m3 Water 182kg m3

mix ratio; 1：：

The following gives you three different strengths of concrete dosage and mix ratio;

Concrete strength: C25, slump: 35-50mm, sand type: medium sand, preparation strength, the maximum particle size of the stone is 40mm, cement strength grade, dosage per cubic meter;

Cement 372kg m3 Sand 576kg m3 Crushed stone 1282kg m3 Water 175kg m3.

mix ratio; 1：：

Concrete strength: C30, slump: 35-50mm, sand type: medium sand, preparation strength, maximum particle size of stone 40mm, cement strength grade, dosage per cubic meter;

Cement 427kg m3 Sand 525kg m3 Crushed stone 1286kg m3 Water 175kg m3

mix ratio; 1：：

First of all, one cubic meter of such a turn requires 700 kilometers of sand, 180 kilometers of water and 300 kilometers of cement.

Secondly, for this kind of cement and sand, they have to carry out a certain ratio, and they must be treated according to the actual situation, otherwise it will reduce his strength.

Summary. 1 cubic concrete is offered with 480 kg of cement, 720 kg of sand and 1200 kg of stone.

The mass of 1 cubic meter of concrete is about 2400 kg. 1 cubic meter of concrete is calculated as 2400 kg:

Cement mass = 2400 2 (2 + 3 + 5) = 480 (kg);

sand mass = 2400 3 (2 + 3 + 5) = 720 (kg);

Stone mass = 2400 5 (2+3+5) = 1200 (kg).

How many cubic meters of sand and stones do you need for one side of concrete.

1 cubic concrete is about 480 kilograms of cement, 720 kilograms of sand and 1,200 kilograms of gravel. The mass of the collapsed bench of 1 cubic meter of concrete is about 2400 kg. 1 cubic meter of concrete is calculated as 2400 kg:

Cement mass = 2400 2 (2 + 3 + 5) = 480 (kg); sand mass = 2400 3 (2 + 3 + 5) = 720 (kg); Stone mass = 2400 5 (2 + 3 + 5) = 1200 (Gong Tuan Fiber Brigade Kilogram).

A cubic meter of concrete needs about 0.33 cubic meters of sand quietly lost, about 0.5 cubic meters of stones, cement 0.17 cubic meters of Shen Mi, this is a construction engineering problem, we are here according to the proportion of ordinary concrete ingredients, stone than sand than cement is equal to 3 to 2 to 1 of the proportion of ingredients, in fact, in accordance with the specific requirements of the batching.

The amount of sand and gravel should be determined according to the strength of the concrete, taking C20 concrete as an example, one side of the concrete needs square sand and square stones. In civil engineering, the most widely used is ordinary concrete, that is, cement concrete made of cement as cementitious material, sand and stone as aggregate, and mixed with water.

Concrete. Concrete refers to the artificial stone made of cement as the main cementitious material, mixed with water, sand and gravel, mixed with chemical admixtures and mineral admixtures when necessary, matched in appropriate proportions, and evenly stirred, compacted and cured and hardened.

Concrete is mainly divided into two stages and states, the plastic state before setting and hardening, that is, fresh concrete or concrete mixture, and the hard state after hardening, that is, hardened concrete or concrete.

The concrete strength grade is divided by the standard value of cubic compressive strength, and the strength grade of ordinary concrete in China is divided into 14 grades, namely C15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65, Lumeng C70, C75 and C80.

1 cubic meter of C30 concrete: cement is 461kg, sand is 512kg, stone is 1252kg, water is 175kg.

C20 cement strength: pebble concrete, cement surplus coefficient, coarse aggregate maximum particle size 20mm, slump 35 50mm.

Amount of material per cubic meter: zhuan water: 190kg.

Cement: 404kg. Sand:

542kg。Stones: 1264kg.

The mix ratio is::1::

Sand rate 30%. Water-cement ratio:.

One cubic meter of solid concrete requires about 700 kilograms of sand, about 180 kilograms of water, and about 300 kilograms of cement.

The density of sand is one cubic centimeter.

grams, the density of stones at this time is one cubic centimeter of grams, and the sand required at this time is about cubic meters. The stone needed is cubic meters, that is, about half a carton of sand for ordinary use. Of course, the quality used in different sand is also different, because fine sand will add about ten kilograms of weight.

Simple point memory 1:2:4, cement 1, sand 2, stone 4, dry mass ratio.

The ratio can be adjusted appropriately according to the particle size of the stone, the thickness of the sand and the moisture content, and the ratio of water and cement is generally between. The higher the strength, the greater the amount of cement, more than 450 kg of cement per cubic meter, you need to consider increasing the cement grade.

Depending on the designation, the weight of each material is different. This is C30 cement 417kg sand 586kg

1361kg of water for stones.