Find the construction process data of concrete expansion agent

When using concrete expansion agent, attention should be paid to checking the name of the external expansion agent, the name of the manufacturer, the brand, etc. When using, it is generally advisable to make the expansion agent solution first, and pre-add it to the mixing water, when the powdered expansion agent is used, it can also be used to mix the quantitative small package expansion agent and the carrier. When using the expansion agent solution, the concentration of the expansion agent solution should be checked frequently, and the expansion agent solution should be stirred frequently to make the concentration of the solution uniform and consistent, and prevent precipitation.

The amount of water in the solution should be included in the amount of water used for mixing.

Summary. Pro, the calculation method of concrete expansion agent dosage: it is calculated according to the percentage of cement dosage. If the amount of cement is 500 kg, the expansion agent is 500*10% for 50 kg, and the cement amount is still 500 kg.

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Pro, the calculation method of the amount of concrete expansion and old agent: it is calculated according to the percentage of the amount of cement in liters. If the amount of cement is 500 kilograms, the expansion agent is 500*10% for 50 kilograms, and the cement amount is still 500 kilograms.

Concrete expansion agent is used to prepare expanded concrete (including compensating shrinkage concrete and self-stressing concrete), compensating shrinkage concrete has the effect of compensating concrete dry shrinkage and compacting concrete, improving concrete impermeability, and is mainly used in civil engineering to prevent wax water and crack resistance.

The calculation formula of the concrete expansion agent is as follows: the dosage of calcium oxide swelling agent is generally 3%-5% of the cement mass, and the dosage of calcium sulfoaluminate cavity swelling agent is generally 8%-12% of the cement mass, and when the expansion rate is large, their dosage should be larger. Bulking agent Songkai e= cp xk ( kg m'Cement c = co-e (kg m'

Wrong. That's the formula.

Concrete, you know.

Knowing the pro. Rubber 340, doped with 13% bulking agent, you calculate.

The formula for calculating pro is dosage (%) expansion agent (cement + expansion agent) 1003

Summary. The amount of leavening agent used for each side is 37 kilograms, and the amount of cement is 333 kilograms.

2. Scope of application.

1. All concrete projects and components that require anti-cracking and seepage prevention can be used to prepare compensating shrinkage concrete, such as: building basements, underground structures, pools, swimming pools, sewage treatment pools, water towers and storage tanks, subways, tunnels, water conservancy and hydropower, marine engineering and other waterproof structures, rigid waterproof roofs, ultra-long floor slabs, stadium stands, and radiation-proof concrete structures.

Hello. The amount of leavening agent used for each side is 37 kilograms, and the amount of cement is 333 kilograms. 2. Scope of application 1 All concrete projects and components that require anti-cracking and seepage prevention can be used to prepare compensating shrinkage concrete, such as:

Buildings quietly build basements, underground structures, water pools, swimming pools, sewage treatment pools, water towers and storage tanks, subways, tunnels, water conservancy and hydropower, marine engineering and other waterproof structures, rigid waterproof roofs, ultra-long floor cover slag boards, stadium stands, radiation-proof concrete structures.

The amount of bulking agent for each side is 37 kilograms, and the amount of cement is 333 kilograms. 2. Scope of application 1 All concrete projects and components that require anti-cracking and seepage prevention can be used to prepare compensating shrinkage concrete, such as: building basements, underground structures, pools, swimming pools, sewage treatment pools, water towers and storage tanks, subways, tunnels, water conservancy and hydropower, marine engineering and other waterproof structures, rigid waterproof roofs, ultra-long floors, stadium stands, and radiation-proof concrete structures.

2. It can also be used to prepare expanded concrete and expansion mortar for filling, such as: beam-column joints, filling concrete for post-pouring joints, mechanical tung elimination cover preparation and reinforcing secondary bridge skin pouring, etc. 3 It can be used to produce self-stressing concrete pressure pipes used at room temperature.

Concrete expansion agent is used to prepare expanded concrete (including compensating shrinkage concrete and self-stressing concrete), compensating shrinkage concrete has the effect of compensating concrete dry shrinkage and compacting concrete, improving concrete impermeability, and is mainly used in civil engineering in waterproof and anti-cracking two aspects, and now the occasion used more is to prepare high-grade waterproof concrete and appropriately extend the expansion joint or post-pouring belt spacing.

Concrete expansion agent is a calcium sulfoaluminate type concrete expansion agent, which does not contain sodium salt, and should not cause concrete alkali aggregate reaction. The durability is good, the expansion performance is stable, and the strength continues to rise. Ordinary concrete often leaks due to shrinkage and cracking, which reduces its use function and durability.

The cement is mixed with 8%-12% expansion agent, which can be mixed into compensating shrinkage concrete, which greatly improves the crack resistance and waterproof ability of the concrete structure. The external waterproofing operation can be canceled, and the spacing of the rear pouring joints can be extended to prevent the appearance of temperature difference cracks in large-volume concrete and high-strength concrete.