Practical Utilization Findings of Concretes with Gypsum-Free Cements at Building of Concrete Pavements and Landing Ground
Abstract
The paper describes research findings and observations concerning practical application of concretes based on gypsum-free cements. Concretes made of gypsum-free cements feature short processing time and high initial strength over 1 to 3 days. Also, the article analyzes chosen factors impacting to fresh/hardened concrete – to begin with influence of mineralogical composition of aggregates, impact of water-cement ratio to initial setting time of fresh concrete as well as impact of water-cement ratio to concrete initial strength. The paper presents confrontation of concrete strengths using standard Portland cement with the same of concrete based on gypsum-free cement. Furthermore, described is experience in applied application of concretes based on gypsum-free cements. In view of short processing time as to concretes based on gypsum-free cements i.e. 25 to 50 minutes as a rule, these concretes are optimal in particular for small volume constructions or repair works requiring putting into operation as soon as possible as from casting, e.g. cement-concrete road carpets.
Full Text:
PDFReferences
Drochytka R.: et al. Progressive Building Materials with Utilization of Secondary Raw Materials and their Impact on Structures Durability. but, Final report of the project VVZ CEZ MSM: 0021630511, Brno 2008. Brozovsky J.: Subtask 3 (in Czech).
Brozovsky, J. Investigation of the utilization and preparation of concretes with highly early strength values, Military academy Brno, 1994, (in Czech),
Brozovsky, J., Brozovsky, J. jr. : Concrete with gypsum free cement – basic characteristics In : The Intenational Symposium on Non – Traditional Cement & Concrete, Brno, Czech Republic, 2002
Bydzovsky, J., Brozovsky, J. : Проектирование ÑоÑтава бетонов на безгипÑовом портландцементе. Современный научный веÑтник, 2007, No. 17(25), p. 90-97, ISSN 1561- 6886.
Brozovsky, J. Martinec, P. : Concrete based on gypsum free cements: surface resistance to cyclic de-icing, defrosting and chemical substances. In 9TH International Conference Modern Building
Materials, Structures and Techniques, Vol. I, Selected papers, ed. Vilnius Gediminas technical University, Vilnius, Lithuania, 2007 p. 29-33 (Vol. 1), ISBN 978-9955-28-201-3
Brozovsky, J., Brozovsky, J. jr., Bydzovsky, J. : ВлиÑние ÑоÑтава Ð·Ð°Ð¿Ð¾Ð»Ð½Ð¸Ñ‚ÐµÐ»Ñ Ð¸ толщины цементного теÑта на раÑход цемента в бетонах на безгипÑовом портландцементе. In VI – Ñ
ÐœÐµÐ¶Ð´ÑƒÐ½Ð°Ñ€Ð¾Ð´Ð½Ð°Ñ Ð½Ð°ÑƒÑ‡Ð½Ð¾-практичеÑÐºÐ°Ñ Ð˜Ð½Ñ‚ÐµÑ€Ð½ÐµÑ‚ – ÐºÐ¾Ð½Ñ„ÐµÑ€ÐµÐ½Ñ†Ð¸Ñ â€žÐ¡Ð¾ÑтоÑние Ñовременной Ñтроительной науки – 2008», ed. Сб. науч. Трудов – Полтава : ПолтавÑкий ЦÐТÐИ и журнал Бетон и железобетон в Украине, Poltava, Ucraine, 2008, pp. 26-30
Refbacks
- There are currently no refbacks.
Copyright (c) 2016 INTERSECTII / INTERSECTIONS
Indexed
