Comparison Between Aac And Clc 23i4o

COMPARISON BETWEEN AAC AND CLC

S. No. 1.

Basic raw materials & other inputs

2.

General Properties

3.

Autoclaved Aerated Concrete Blocks

Parameters

Cement, Fly Ash, Lime and Gypsum

Cellular Lightweight Concrete Blocks

Burnt Clay Bricks

Cement, Aggregate, Fly Top Soil & Ash, Water & Foaming Energy Compound

Dry Density kg/m3 600

750 – 800

1900

Compressive Strength in kg/cm3

40

25 – 30

40-75

Range of applications / utility

Non-load bearing blocks

Partition

Load-bearing & non-load bearing

Aging

No gain in strength with age

Gains strength with age

No gain in strength with age

Thermal Conductivity (W/m.k.)

0.132-0.151 for 600 kg/m3

0.132-0.151 for 800 kg/m3

0.184

Sound Insulation

Superior than burnt clay & Superior than burnt clay Normal hollow concrete & hollow concrete

Ease of Working

Can be cut, nailed & drilled

Can be cut, nailed & drilled

Normal

Shape & Form Pre-cast Brick size

600 x 200 x 100/150/200 600 x 200 x 100/150/200 230 x 100 x 70 mm mm mm

Pre-cast elements

Any size of elements

Any size of elements

Cast in shape

Not feasible

Any shape & size in any Not feasible density

Not feasible

4.

Water Absorption % by 45% by volume weight

12% for 800 kg/m3 density (by volume)

20% by volume

5.

Drying Shrinkage mm/meter

Shrinkage after maturing0.011 (for 600 kg/m3) 0.058 (for kg/m3)

0.10

No shrinkage

6.

Productivity

Output 100% more than brick work

Output 100% more than Normal brick work

7.

Eco Friendliness

Pollution free, High Pollution free, Least energy requirement, Open energy requriement, process uses fly ash Can consume fly ash

Creates smoke, Uses high energy, Wastes

S. No.

Parameters

Autoclaved Aerated Concrete Blocks

Cellular Lightweight Concrete Blocks

Burnt Clay Bricks

around 33%

8.

Structural saving due to dead weight reduction

agricultural land

55% reduction in weight of 55% reduction in weight walls. Tremendous of walls. Tremendous structural saving for high structural saving for high No additional rise buildings in rise buildings in saving Earthquake / Poor soil Earthquake / Poor soil area area

Detailed comparison of Bricks Vs our Sri Sai CLC Bricks Aspect

Brick Wall

CLC wall

Remarks

External

230 mm

200/150 mm

Saving of 13 to 35%

Partition

115 mm

100 mm

Saving of 13%

External

0.051 m³/m²

0.011 m³/m²

Saving of 78%

Partition

0.02 m³/m²

0.005 m³/m²

Saving of 75%

Plastering

12 + 15 mm

8 + 10 mm

Saving of 33%

External

601 kg / m²

256 / 206 kg / m²

Reduction of 60%

Partition

319 kg / m²

148 kg / m²

Reduction of 48%

Labour for work

100%

60%

Reduction of 40%

Quality

Normal

Superior

Satisfied Client

Chase cutting

Difficult

Easy

Faster Laying Service

Driving nail

Difficult

Easy

Happy Client

Longevity

May deteriorate with time

Gains strength with times as ordinary concrete

Better Durability

Thickness

Mortar Masonry

Dead Load

Ease of Working

Properties and Paramsters of our CLC Bricks Property

Unit

Value

Advantage

Size

mmxmmxmm

600 x 200 x 200 600 x 200 x 150 600 x 200 x 100

Dry Density

kg/m3

900 (approx)

Dry Weight

kg

200mm- 20(+or-1kg) 150mm- 15(+or-1kg) 100mm- 10(+or-1kg)

Light weight

Compressive Strength

kg/cm2

20 -25 @ 28 days. Increase with age

Adequate strength

Water Absorption

%

<20

Very low water absorption

Thermal Conductivity

W/m-K

0.21

Good thermal insulation

Red brick-4 / piece CLC- 45/piece 2040 MPA AAC (Aerocon)- 3000/cumec Flyash- 4/piece

Thinner walls