Lub teeb yuag qhob ntxiv | Kev Ua Haujlwm Siab Ua Foaming Cov Neeg Sawv Cev Rau Cov Khoom Siv Ntawm Tes
Foam concrete is a lightweight construction material that has honeycomb-shaped closed air cells within its structure. This material can be used in a wide range of applications such as precast blocks, lintels, hollow walls & floors. It requires no forming, can be placed in-situ & offers excellent thermal insulation properties.
Typical materials for this type of concrete include cement, pozzolanic additives, fine aggregate & u. It can also be supplemented with fly ash or white ground granulated blast furnace slag (GGBFS) to reduce the amount of cement needed. Ntxiv rau, protein-based foaming agents such as Greenford & Kemilite PR can be added to the mix to produce a highly aerated mixture.
Air entraining agent is introduced by mixing the foaming agent with the cement, sand and water slurry in a concrete mixer. Qhov no ua rau tsim tau pob zeb nplaum uas muaj qhov ntom tsawg dua li pob zeb nplaum ib txwm, ua rau lub tsev siv hluav taws xob zoo dua. Pob zeb nplaum nplaum tuaj yeem muab tso rau hauv daim duab, tsis tas yuav nias lossis nres nres thiab siv tau los puv thaj chaw loj xws li hauv paus.
Pob zeb nplaum nplaum muaj zog tensile thiab flexural zoo heev, tab sis zog nias poob qis thaum qhov ntom nce. Qhov no tuaj yeem piav qhia tau tias thaum qhov ntom ntawm pob zeb nplaum nce, qhov loj ntawm qhov chaw me dua. Vim li no, nws tseem ceeb heev kom xaiv cov khoom ua npuas kom haum rau hom pob zeb nplaum no.