Колонка редактора - Eng

Назад


Properties of cement astringent by use of modified microsilica and hyperplasticizer DC-5

UDK: 691.54

E.A. Ashpalatova, A.A. Spiridonova, V.M. Sultanova

The use of complex modifiers based on polycarboxylate plasticizers and carbon nanotubes is becoming acquires wide popularity in modern materials science. This article presents the effect of complex additives on the rheological characteristics of the cement test and on the physico-mechanical characteristics of building composite materials. So, with the constant appearance of new types of hyperplasticizing additives, work is underway to create new studies to assess their effect on the quality of cement composites for the preparation of higher-quality and high-strength composite materials based on cement binders. It was found that the introduction of DS-5 hyperplasticizers on the basis of polycarboxylate esters significantly reduces consumption of mixing water and cement when introduced into the formulation in small amounts. Using of carbon nanotubes in the hyperplasticizer improves the plasticizing properties and improves the mechanical characteristics of the cement astringent. Also, the incomplete dispersion of carbon nanotubes in the carboxylate environment and the mixed sorting in the structure of the cement matrix reduce their effectiveness.

Файл: Спиридонова.pdf, 7 pag.

Рубрика: Строительные материалы и технологии их производства
Выпуск №8: По материалам IX Всероссийской молодежной конференции аспирантов, молодых ученых и студентов «СОВРЕМЕННЫЕ ТЕХНОЛОГИИ В СТРОИТЕЛЬСТВЕ. ТЕОРИЯ И ПРАКТИКА», (Часть I ,июнь, 2017)


Copyright © 1998-2019
РЦИ ПНИПУ, ПРЕСС-СЛУЖБА ПНИПУ
8 (342) 2-198-119, 2-198-221, newschannel@pstu.ru
Наверх