Te mau tao'a tahi mâmâ | Te mau rave'a haaparareraa parau teitei no te cellular concrete
The high-efficiency water reducing agent can significantly improve the fluidity of the stirring slurry, so that the foaming mud can reach self-leveling in the mold, reducing or even no bread. It can dramatically reduce water consumption while keeping the slump of the concrete, and the water reducing agent is also called dispersant or plasticizer. It is the most commonly used admixture.
The role of water-reducing agent:
1. Reduce the solid-liquid interface energy of cement particles
2.Static repulsion
3.Spatial repulsive force
4. Lubrication effect of hydration Ōrama
Water reducing agent principle:
The specific surface area of cement is generally 350-400m2 / kg, and the particle size of more than 90% of cement particles is in the range of 7-80 microns, which belongs to the category of fine powder particles. For the cement-water system, Te vai ra te hoê mata polar iti e te hydrophilicity puai to te mata o te mau hu'ahu'a sima e te mau hu'ahu'a sima. E ito taa ê to te mau hu'ahu'a sima maitatai (te ito o te pape). To reduce the total heat on the surface solid-liquid, No te faaiti i te ito o te faanahoraa e no te faariro i te faanahoraa ei thermodynamic. A tapea i te vai - maitai - raa. I te hoê â taime, i te omuaraa o te faaîraa i te sima, ua faaîhia te mata o te mau hu'ahu'a C3A, area te mau hu'ahu'a C3S e C2S ra, e mea ino roa ïa. Te faaitoito atoa nei te hutiraa mai i te mau faaueraa maitai e te ino i te haamauraa i te hamaniraa o te mau hu'ahu'a sima.
E toru huru no te pape i roto i te simeni: te pape tamoni ore e te pape pu'e. I te omuaraa o te faaîraa i te sima, mea iti a'e te pape e te pape tei î i te mau tao'a tahi, e te vai ra te pape anoi i roto i te huru o te pape tamoni ore. Āre'a, no te huru o te mau hu'ahu'a sima, 10% -30% E tapo'ihia te reira i te pape maamaa, ma te faaiti rahi i te pape o te anoiraa sima. Te ohipa matamua, o te haamouraa ïa i te hamaniraa o te mau hu'ahu'a sima, A tapea i te reira i roto i te hoê huru purara, e a tuu i te pape tamoni ore i roto i te afata e te puaahorofenua, ma te haamaitai i te pape o te simeni apî.
O Cie-China.org te taata rahi roa a'e o te horo'a i te mau rave'a haaparareraa parau, te mau hu'ahu'a rahi,Te haamaitairaa o te hu'ahu'a no te hu'ahu'a mo'a, Te mau ofa'i CLC. Mai te mea e, te imi ra outou ste mau hu'ahu'a, Aita e feaaraa A farerei ia matou.