LIGHT CONCRETE PROCESS

SOME PROCESSES IN MAKING LIGHT CONCRETE

New Factory of Light Concrete in Sumatera - Indonesia

One of our new customer in Sumatera - Indonesia has produced Light Concrete Foam
Remaks :from left to right
1. Euipments
2. Filling of material
3. Filing of Cement
4. Molding of Light Concrete
5. Filling of green material light concrete to molding
6. Release of Light Concrete from the molding after 10- 12 hours
7. Stuffing of light concrete onto the warehouse area
8. Test the light concrete to the water .
9. The man was sitted on the light concrete after 16-18 hours process.

Enviromental Benefits of Light Concrete - AAC ( Green Products )

Environmental benefits of Light Concrete - AAC

The use of AAC has a range of environmental benefits:

Insulation:

Most obviously, the insulation properties of aircrete will reduce the heating costs of buildings constructed with autoclaved aerated concrete, with consequent fuel savings over the lifetime of the building.

Materials:

Lime is one of the principal mix components and requires less energy to produce than Portland cement, which is fired at higher temperatures. Sand requires only milling before use, not heating, and PFA is a by-product from electricity generation. NB: lime may require less energy to manufacture compared with Portland cement but more CO2 is produced per tonne (cement approx. 800-900 kg CO2/tonne compared to lime at 1000 kg CO2 per tonne).

Carbonation:

Less obviously, the cellular structure of aircrete gives it a very high surface area. Over time, much of the material is likely to carbonate, largely offsetting the carbon dioxide produced in the manufacture of the lime and cement due to the calcining of limestone.

Procedure to Making Light Concrete ( Autoclave Aerated Concrete - AAC )

Procedures to Making Light Concrete ( equivalent to product like HEBEL / CITICON or other Light Concrete )

1. Weight all the raw material and put to mixer and add rising agent , do mixing while the raw

material put in the mixer 3-5 min max.

2. Open the outlet of the mixer and the slurry go thru to the molding, ussually the molding for

2-3 M3 of volume.

3. Rise the high of Moulding 50 - 60 % of total high moulding.

4. Sent to the Curing Room for cure the Slurry for 3-4 hours , to getting the completely reaction

between rising agent with lime hydrate to produces hydrogen gases and the slurry tobe

come green concrete and incresed 90-100 % higher.

5. Unloading green concrete from moulding and do the cutting size ( cutting machine ) as market

requirments.

6. Sent the green concrete to the Autoclave for the final reaction for 12-14 hours.

Temperature and Pressure will be controlled .

7. Finish product ready to distributed or sell.

NOTE : The k factor ( Strength N/mm2) and Density kg/M3 were depand on the

1. Compasition of Raw Material

- Cement and Sand

- Cement and Fly Ash or

- Cement , Fly Ash and sand

2. Viscosity of Slurry when in the Mixer.

3. Operational of Autoclave

UNIFORM SIZE OF PARTICLE

BALL MILL !


The ball mill is a key piece of equipment for grinding crushed materials, and it is widely used in production lines for powders such as including cement, silicates, refractory material, fertilizer, glass ceramics, etc. as well as for ore dressing of both ferrous non-ferrous metals. The ball mill can grind various ores and other materials either wet or dry.

There are two kinds of ball mill, grate type and overfall type due to different ways of discharging material. There are many types of grinding media suitable for use in a ball mill, each material having its own specific properties and advantages.

Key properties of grinding media are size, density, hardness, and composition.

Size:
The smaller the media particles, the smaller the particle size of the final product. At the same time, the grinding media particles should be substantially larger than the largest pieces of material to be ground.

Density:
The media should be denser than the material being ground. It becomes a problem if the grinding media floats on top of the material to be ground.

Hardness:
The grinding media needs to be durable enough to grind the material, but where possible should not be so tough that it also wears down the tumbler at a fast pace.

Composition:
Various grinding applications have special requirements. Some of these requirements are based on the fact that some of the grinding media will be in the finished product. Others are based in how the media will react with the material being ground.

Principle:
The rotation is through the ball mill motor driven pinion gear shift operation,the pinion installed on the cylinder rotation gear, and slow down, speed gear arerotating cylinder operation to work, the material in the feed gradually into the hollowshaft cover cylinder body, in the cylinder spins, centrifugal force and friction generated,so that medium (steel balls) and the ore up to a certain height with the cylinder wallwhen the weight of a parabola with its fall or drip down , grind the ore is mainly broken by the impact when the media fall when the abrasive force and motion to achieve, the cylinder with the movement of ore into the ore to rely on constant pressure to achieve, the final discharge from the discharge cover of the hollow shaft.

Wet grinding, the ore taken away by water
Dry mill, the ore is extracted to theair outside the tube out.(Zoneding Machine)

SIZING THE PRODUCTS ?

CUTTING MACHINE !

One of part the important machine unit in the process making of AAC ( light concrete) is cutting machine.
This machine fuctions are.
1. Cutting the green sheet with the uniform size
2. Making the size with in the requirment customer ( customer needed)
3. Mass cutting in one process cutting to minimize process
4. Get the stabilities in standard size
5. Less waste in one way cutting process

More info ,pls contact to Frangky

AAC Stock Area

AAC warehouse ; just put the finish product to the open area ( no roofing ).