INFLUENCE OF WATER LOSS ON STRENGTH CHARACTERISTICS OF HELIOBETON

Author(s):  
С. А. Алиев ◽  
С-А. Ю. Муртазаев ◽  
Х. Э. Таймасханов ◽  
Р. С-А. Муртазаева

В работе рассмотрены основы тепло- и массообменных процессов при выдерживании бетона в гелиоформах со светопрозрачным покрытием. Изучены особенности обезвоживания бетона, твердеющего в условиях высоких температур и низкой относительной влажности. Установлено, что количественные показатели влагопотерь влияют не только на физико-механические и эксплуатационные показатели, но и на конструктивные особенности гелиоформ, используемых для выдерживания бетонных композитов на комплексных вяжущих, получаемых на основе использования портландцемента и некондиционного природного и техногенного сырья. The paper discusses the basics of heat and mass transfer processes during the curing of concrete in helioforms with a translucent coating. The features of dehydration of concrete hardening under conditions of high temperatures and low relative humidity have been studied. It has been established that the quantitative indicators of moisture loss affect not only the physical, mechanical and operational indicators, but also the design features of the helioforms used to cure concrete composites on complex binders obtained through the use of Portland cement and substandard natural and technogenic raw materials.

2021 ◽  
Vol 9 (3) ◽  
pp. 235-244
Author(s):  
Ivan Shorstkii ◽  
Maksim Sosnin

The effect of low-temperature filamentary microplasma treatment on the anatomi-cal integrity of cell membranes of plant raw materials was studied. It is shown that microplasma treatment forms a through channels in the structure of plant materi-als and accelerate mass transfer process. The effect on the cell membrane of plant raw materials leads to a change in the capillary-porous structure with the for-mation of additional pores formed by microplasma discharge, oriented along the direction of the electric field strength. It was found that the dependence of the number of destroyed cells on the intensity of microplasma treatment is limited and decreases with longer processing of plant raw materials. According to the results of experimental studies, it was established that with microplasma treatment assis-tant, it is possible to control mass transfer processes which are important for the further processing of plant raw materials, such as drying and extraction


2021 ◽  
Vol 60 (2) ◽  
pp. 2629-2639
Author(s):  
Yin Yang ◽  
Grzegorz Rządkowski ◽  
Atena Pasban ◽  
Emran Tohidi ◽  
Stanford Shateyi

1987 ◽  
Vol 84 (3) ◽  
pp. 509-514 ◽  
Author(s):  
V.I. Bredikhin ◽  
V.P. Ershov ◽  
V.V. Korolikhin ◽  
V.N. Lizyakina ◽  
S.Yu Potapenko ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document