Title:
Effect of Water-Cement Ratio on Concrete Weight Coatings
Author(s):
Eugene Alymov
Publication:
Concrete International
Volume:
40
Issue:
5
Appears on pages(s):
28-31
Keywords:
aggregate, void, air, pressure
DOI:
Date:
5/1/2018
Abstract:
Zero-slump concrete can be used for weight coating of steel pipes used for the underwater transmission of natural gas, primarily to provide negative buoyancy for the pipe sections. This concrete is prepared using heavyweight (iron ore) aggregates and typically has a water-cement ratio of 0.33. Results of the study described in this article indicate that void contents can be reduced using water-cement ratios that exceed the typical value. This will allow for cost savings through reductions in the proportion of heavyweight aggregate in the mixture.
Related References:
1. Kalantari, B., “Various Types of Portland Cement Concrete Used in Pavement and Dam Constructions,” International Symposium on Advances in Science and Technology, Mar. 2013, www.researchgate.net/publication/319839604_Various_types_of_Portland_cement_concrete_ used_in_pavement_and_dam_constructions.
2. Burns, C., “Compaction Study of Zero Slump Concrete,” U.S. Army Corps of Engineers, Waterways Experimental Station, 1976, 10 pp.
3. “DNVGL-ST-F101 Submarine Pipeline Systems,” DNV GL, Høvik, Norway, 2017, 520 pp.
4. Caldarone, M.A., High-Strength Concrete: A Practical Guide, CRC Press, Boca Raton, FL, 2008, 252 pp.
5. Neville, A.M., Concrete: Neville’s Insights and Issues, Thomas Telford, London, UK, 2006, 314 pp.
6. Taylor, P.; Yurdakul, E.; Ceylan, H.; and Bektas, F., “Effect of Paste Quality on Fresh and Hardened Properties of Ternary Mixtures,” Report No. DTFH61-06-H-00011 Work Plans 19 and 25, Federal Highway Administration, Washington, DC, 2012, 55 pp.