CLC blocks are precast concrete blocks and they are extremely lightweight and widely used for internal and external construction. 80% of the volume of a CLC block is air. The blocks are easy to install, nail, drill and cut for pipes and conduits. The raw materials to manufacture the CLC blocks are flyash/sand, cement and protein based foaming agent. These blocks are fire and pest resistant, Low Maintenance, Long- Life, Seismic Resistant blocks used for various applications across the world from last 6 decades.
| S.NO | Block Density in Oven Dry Condition(kg/m3) | Grade | Compressive Strength(N/mm2) | Thermal Conductivity in Air Dry Condition Kal/m/h/0c | Water Absorption(Oven Dry Density)Percentage | |
|---|---|---|---|---|---|---|
| Average Min | Individual Min | |||||
| 1 | 800 | G-2.5 | 2.5 | 2.0 | 0.32 | 12.5 |
| 2 | 1000 | G-3.5 | 3.5 | 2.8 | 0.36 | 12.5 |
| 3 | 1200 | G-6.5 | 6.5 | 5.2 | 0.38 | 10.0 |
| 4 | 1400 | G-12 | 12 | 9.0 | 0.45 | 10 |
| 5 | 1600 | G-17.5 | 17.5 | 14.5 | 0.50 | 7.5 |
| 6 | 1800 | G-25 | 25 | 22.0 | 0.54 | 7.5 |
| S.NO | PARAMETERS | BURNT CLAY BRICKS | HOLLOW OR SOLID FLYASH BRICKS | AAC BLOCKS | CLC BLOCKS |
|---|---|---|---|---|---|
| 1 | Basic Raw Material | Agricultural soil coal or wood for fiering | Cement,sand,flyash,lime and aggregate | Cement,Lime, Flyash, water, Gypsum, Alluminium powder & Steam | Cement,sand,flyash & foaming agent |
| 2 | Production process and set-up | Processed in normal bricks kilns | Mobile/Stationary Plant | Produced in well established plant equipped with Batching Plant, Moulds, Wire Cutting Machine, steam boiler, high pressure auto-claves and or Low pressure Steam chambers and other processing equipments | Can be produced at project site on Specially designed plants foam concrete stations and other processing equipments |
| 3 | Dry Density kg/m3 | 1800-2000 | 1700-2000 | 550-750 | 300-600 800-1000 1200-1800 |
| 4 | Compressive strength kg/cm2 | 30-80 | 30-150 | 30-60 | 4-10 25-35 125-250 |
| 5 | Applications | Load bearing and non-load bearing | Load and non Load bearing walls | Load bearing & Non load bearing Wallls and Reinforced panels | Thermal partitions high load insulation high rise and & bearing LOw rise and PC load & non Eliments LOad bearing |
| 6 | Precast block size | 229*1147*70mm | 400*200*200 mm 400*200*150 mm 400*200*100 mm |
600*200*100/150/200 mm 500*200*100/150/200 mm 400*200*100/150/200 mm |
600*200*100/150/200 mm 500*200*100/150/200 mm 400*200*100/150/200 mm |
| 7 | Cast in place | Not Feasible | Not Feasible | Not Feasible | Any shape & size in density range 300-1800 kg/m3 |
| 8 | Compaction during production | Yes | Yes | None | None |
| 9 | Thermal Conductivity(W/m.k) | 0.7 | 0.1 | 0.16 For Kg/m3 0.214 For 800Kg/m3 0.28 For 1000Kg/m3 |
0.16 For Kg/m3 0.214 For 800Kg/m3 0.28 For 1000Kg/m3 |
| 10 | Sound Insulation | Normal | Better | Superior | Superior |
| 11 | Ease of working | Normal | Difficuit | Can be cut,sawn,nailed,drilled | Can be cut,sawn,nailed,drilled |
| 12 | Eco friendliness | -process create smoke -uses high energy and -wastes agricultural land |
-Low energy -No smoke |
-Pollution free -green products -Least energy requirement -can consure flyash |
-Pollution free -green products -Least energy requirement -can consure flyash |
