Automatic Autoclaved Aerated Concrete AAC Block Plant  AAC Sand Lime Block

1.Introduction

Areated concrete block (light block ) is the light and porous buidling material. It has light keeping temperature cant burn and other advantages.it can be made into many kinds of bricks for example:600×200×100,80×80×180,240×115×53,600×200×125),they could be used industry building and common building. they are more and more popular in the world.in the future, they will replace the Clay brick completely.

2.AAC block machine/lightweight block machine advantages

(1)light weight

Areated concrete density is usually 400-700kg/m3,(according the market in produce ),same as 1/3 of clay brick and 1/5 common concrete. So use the Light brick can reduce the weight of the build more,and also reduce the beam of roof and pillar press best.then you can see,it can save the material and cost,it also fighting shaking.

(2) keeping temperature
It has many are porous, the delivery hearting coefficient is 0.9-0.22W/(mk),the same as 1/4 or 1/5 of clay brick, so it is best materials now in the world. There are many kinds material, have lowest waste.

(3)High Strength
High pressure steam-curing autoclaving process gives AAC unmatchable strength to weight ratio, higher than even M150 concrete

(4)Cost saving
Being lightweight AAC drastically reduces the dead weight of building, resulting into reduction in steel (up to 27%) and cement (up to 20%) structural cost saving.Being 8 times the size of a clay brick, AAC wall construction involves 1/3 the joints, thus an overall mortar saving up to 66%

3.AAC block DETAILED PRODUCT DESCRIPTION

1 Product weight is according to 600kg/m3 to control.

2 annual capacity 200,000M3

3 set raw material proportion: cement 6.5%, raw lime 23%, flyash 68%, gypsum 3%, aluminum paste powder 350g/M3.

4 water and material rate 0.631

5 one mould product 2.88M3

6 Casting slurry cycle time 5-6 minutes, cut cycle time 5 minutes.

7 casting slurry temperature 38-42 degree

8 body quiet stop. Time is 1.5-2.5housr, temperature 50-90 degree, after quiet stop body strength is 0.15-0.18Mpa

9 Steam curing cycle time, come in and out autoclave about 0.5hour, steam curing cycle time about is 6 hours/1.6Mpa, total 6.5 hours.

4.About the raw material ratio of AAC block :

Cement lime fly ash style aerated block raw material proportion

Cement lime Sand style aerated block raw material proportion

Reference: cement is 42.5 Portland or 42.5 common cement

Aluminum power paste calculate to use according to 600kg/m³ 
Remark: the accurate batching rate is adjustable according to the raw material locally

5.AAC block Market Analysis

AAC is becoming more and more popular around the world, from western countries and then to developing countries. Below Properties make AAC have unmatchable property, especially for high buildings:

1) Extreme Light Weight

2) Large Variety of Sizes

3) High Fire Resistant

4) Excellent Thermal Insulation

5) Great Sound Insulation

6) Moisture Protection

7) Termite Resistant

8) High Workability and Easy processing