Yengil beton qo'shimchalari | Uyali beton uchun yuqori samarali ko'pikli moddalar
Superplastifikatorlar - bu kimyoviy qo'shimchalar bo'lib, ular beton yoki ohak aralashmalarining yopishqoqligini kamaytirish orqali ularning ish qobiliyatini oshiradi.. Ular beton aralashmada tsement to'plamini tezlashtirish yoki kechiktirish kabi turli xil ilovalar uchun ishlatiladi, uning oqim qobiliyatini yaxshilash va suv tarkibini gacha kamaytirish 30% uning kuchiga sezilarli ta'sir qilmasdan. Bu, ayniqsa, betonning erta va uzoq muddatli bosim kuchi bo'yicha qat'iy xususiyatlarga ega bo'lgan qurilish loyihalarida juda muhimdir..
Ushbu maqolada, Riteks EvoTek 7015 betonni ko'proq suyuqlik qilish va qotib qolgan betonda havo teshiklari va bo'shliqlarini kamaytirish uchun turli qurilish loyihalarida qo'llaniladigan yuqori diapazonli suvni kamaytiradigan qo'shimcha sifatida tavsiflanadi.. Bu betonni tezroq va osonroq joylashtirish imkonini beradi, va kamroq tebranish tufayli mehnat xarajatlarini tejaydi.
It is also a powerful dispersant, which helps with better cement hydration and therefore leads to improved concrete’s early and long-term strengths. The unique comb structure as the side chain in this polycarboxylate superplasticizer can both attract and repel the cement particles, which provides a strong dispersing action. It can be easily diluted in a concrete mixture to lower the water-cement ratio, and it is compatible with Portland Cement (powder and blended).
Ushbu tadqiqotda, four different types of superplasticizers, including lignosulfonate, naphthalene, melamin, and polycarboxylate, were mixed with varying concentrations of binder in CPB slurry. Keyin, the slurry’s consistency and strength were evaluated after different hydration times. Natijalar shuni ko'rsatadiki, polikarboksilat superplastifikatori bog'lovchi dozasini kamaytirish va CPB atalasining mustahkamligi va mustahkamligini saqlab qolish qobiliyati bo'yicha eng yaxshisidir..