The measurement and control of particle size distribution in cement are very important for both the desired product composition and controlling production costs. Conventional methods, such as measuring the particle size distribution by sieving and determining fineness a...
The article describes the theoretical concepts underlying the technology of material grinding. The main factors affecting energy consumption in grinding cement are considered. The laws of solids grinding and equations to estimate the parameters of particle size distribu...
The article describes the effect of Portland cement grinding in ball and vertical roller mills on the properties of the finished product. It is shown that to improve the quality of Portland cement an improvement of its particle size distribution is required, which is es...
The present research has contributed to an improved knowledge on the incorporation of Al in the C-S-H phase in cement hydration products.The manner in which chain lengths in the C-S-H phase depend on substitution rate of cement by metakaolin has been determined. It has...
The results of rheological analysis of the raw slurry for cement production are given. The examination was carried out using a modern rotary viscometer Rheotest RN4.1. It was found that in the presence of new generation diluents all the rheological properties change: th...
The influence of slag aging during storage in natural conditions, under water and in open air with varying relative humidity on its reactivity is investigated. It is shown that its changes as compared with a fresh sample are negligible.
The article describes the use of a metallic apron extractor from French firm Walter Materials Handling supplying shredded tires for burning in the calciner at the Holcim Apasco plant in Hermosillo, Mexico. Also, the design of the storage facility with an automated orang...
The article contains recommendations for a long-term operation of gas cleaning plants, their reconstruction and modernization in view of modern technical solutions, in order to significantly improve the efficiency of cleaning plants at lower building and operating costs...
This paper describes the progress of the program to reduce dust emissions of the cement plant within the Polar Division of OAO MMC Norilsk Nickel. As part of the program, the outdated electrostatic precipitator was replaced by a modern bag filter, which significantly re...
In this paper the influence of particle size distri¬bution of metakaolin on its ability to prevent the reaction between the cement alkali and silica filler is investigated. Following the procedure of ac¬celerated tests the linear strains in the samples of fine-grained c...
