Clc Blocks
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We are offering clc blocks clc is an air-cured lightweight concrete that can be produced at project site, utilizing equipment and molds normally in use for conventional concrete. The density recommended is 1.000 kg /m³ (oven-dried) for blocks and 1.200 kg/m³ to produce prefab elements and walls cast in-situ. The typical mix for a 1.000 kg/m³ density clc to be used in blocks is as follows (to produce 1 m³) cement (portland): 190 kg = 61 liters fly-ash: 740 kg = 265 liters (approx) water: 250 kg = 250 liters foam (neopor-600): 423 liters wet density 1.179 kg/m³ total volume (submerged in water) 1.000 liters (= 1 m³) expected (oven-dry) density. Approx. 1.000 kg/m³ content of air in concrete approx. 43% content of fly-ash in solid material (929 kg): 33% content of fly-ash in oven-dry material: 31 % benefits of clc blocks/element tremendous weight reduction high thermal insulation optimum fire rating substantial material savings no gravel used. little cement less steel in structure and foundation easy and fast production no primary energy and reduced transportation costs boon for remote areas with only sand available clc, like conventional concrete ages well, increasing its strength by as much as 50% (!) between 28 and 90 days after pouring, as long as clc draws humidity from the atmosphere it will keep on increasing its mechanical properties. Popular block sizes are: 600x200x200/100mm 500x250x200/100mm 500x400x100mm or as desire blocks are cast in vertical position to offer equally accurate sides, given by the mold. Only one side (the top when cast) is not given by the mold as open-top, which is screeded. This side will face the next block in masonary anyhow. aspect brick wall clc wall remarks thickness external 230 mm 200/150 mm saving of 13 to 35% partition 115 mm 100 mm saving of 13% mortar masonry 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% dead load 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 ease of working chase cutting difficult easy faster laying service driving nail difficult easy happy client longevity may deteriorate with time gains strenth with times as ordinary concrete better durability
