Cur-ris concrait aotrom | Luchd-ionaid foam àrd-choileanadh airson concrait cealla
An coimeas ri blocaichean concrait traidiseanta, tha neart teannachaidh nas àirde aig blocaichean concrait aotrom, gabhail a-steach uisge nas ìsle agus meud nas ìsle. Tha iad cuideachd nas aotroime, less expensive and environmentally friendly.
A typical lightweight block weighs 22-28 notaichean, compared to the standard weight block which weighs about 19.5 notaichean. They are manufactured from expanded clay aggregates or volcanic cinders. They can be cured in a temperature range of 170-185degF, with a curing time of 24 uairean.
The raw materials are weighed electronically before being mixed in the mixer. They are then blended with sand, lime and other ingredients to make a slurry. The mixture is poured into molds for forming. The blocks are then compacted and pushed out of the molds onto a flat steel pallet. Tha na blocaichean an uairsin air an cur ann an stòradh.
Tha am bloc a thig às air a dhèanamh suas de mheasgachadh de saimeant agus gainmheach ann an co-mheas de mu 30% gu 70%. Tha an gainmheach air a chòmhdach le còmhdach de min-sàibh gus ceangal saimeant ris a 'ghainmhich a neartachadh. Tha an còmhdach seo a 'cur casg air a' bhloc bho bhith a 'losgadh.
Feumaidh pròiseas cruthachadh a’ bhloca sgrùdadh cunbhalach. Tha an ìre de shusbaint uisge air a thomhas a’ cleachdadh mothachairean ultrasonic. Ma tha uisge air a ghlacadh, thèid uisge a bharrachd a chur ris gus a dhèanamh suas.
Tha bloc air a leigheas airson 12-18 uairean ann an teas, adhair tais. Tha e an uairsin air a ghlainne le inneal-ceangail resinous thermosetting. Faodaidh seo buaidh sgeadachaidh a thoirt seachad. Faodaidh e cuideachd a bhith air a chòmhdach le glainne bèicearachd. Mar as trice bidh pigmentan dath air an cur ris gus dath èideadh a thoirt don bhloc.