| Issue |
MATEC Web Conf.
Volume 116, 2017
6th International Scientific Conference “Reliability and Durability of Railway Transport Engineering Structures and Buildings” (Transbud-2017)
|
|
|---|---|---|
| Article Number | 01014 | |
| Number of page(s) | 6 | |
| Section | Construction Materials, Protection and Repair of Structures and Buildings | |
| DOI | https://doi.org/10.1051/matecconf/201711601014 | |
| Published online | 10 July 2017 | |
Phase composition and strength of cement stone with a complex additive
National Technical University “Kharkov Polytechnic Institute” (NTU “KhPI”), Technology of Ceramics, Refractory Materials, Glass and Enamels Department, Kyrpychova str. 2, 61002, Kharkiv, Ukraine
* Corresponding author: shum-vita@ukr.net
Ecologically friendly construction is impossible without the use of materials that are characterized by a low emission of dangerous substances from the surface and have other appropriate properties. A solution of the problem related to the elaboration of special measures taken to reduce the emission of ammonia from construction materials and the structures manufactured using the Portland cement has been offered. An optimized composite dope was developed and optimized for the Portland cement composition that contains the nitric acid calcium, which is one of the ingredients that can considerably reduce the concentration of nitrogencontaining compounds, making thus the construction materials less dangerous to the human health. Strength characteristics of the cement stone with the composite dope were studied and it was established that a level of the intensification of a gain in the strength is rather significant and by the seventh day the hardening exceeds the values peculiar for the dope-free compositions at an age of 28 days by more than 45 %.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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