Lub teeb pob zeb Additives | High-Performance Foaming Agents rau Cellular Concrete
Muab piv rau cov pob zeb tsoos tsoos, Cov pob zeb sib sib zog nqus muaj zog dua compressive, qis dua dej nqus thiab qis dua ntim. Lawv kuj sib dua, tsis tshua kim thiab environmentally friendly.
Ib lub teeb hnyav hnyav hnyav 22-28 phaus, piv rau tus qauv hnyav thaiv uas hnyav txog 19.5 phaus. Lawv yog tsim los ntawm nthuav av nplaum aggregates los yog volcanic cinders. Lawv tuaj yeem kho tau hauv qhov kub ntawm 170-185degF, nrog lub sijhawm kho ntawm 24 teev.
Cov khoom siv raw yog ntsuas hluav taws xob ua ntej muab sib xyaw rau hauv lub tov khoom. Tom qab ntawd lawv muab sib xyaw nrog xuab zeb, txiv qaub thiab lwm yam khoom xyaw los ua slurry. Qhov sib tov yog poured rau hauv pwm rau txoj kev. Tom qab ntawd cov blocks yog compacted thiab thawb tawm ntawm cov pwm mus rau lub tiaj tiaj steel pallet. The blocks are then placed in storage.
The resulting block is composed of a blend of cement and sand in a ratio of about 30% rau 70%. The sand is coated with a layer of sawdust to enhance the bonding of the cement to the sand. This coating prevents the block from burning.
The process of forming the block requires constant monitoring. The amount of water content is measured using ultrasonic sensors. If water is trapped, an additional amount of water is added to compensate for it.
A block is cured for 12-18 hours in hot, huab cua. It is then glazed with a thermosetting resinous binder. This can provide a decorative effect. It may also be coated with a baked-on glaze. Color pigments are usually added to give the block a uniform color.