Properties of polymer impregnated concrete spacers
Source abstract
Abstract
Reinforcement spacers are important parts in reinforced concrete structures, and their effect on durability is of great concern. Low quality reinforcement spacers may form weak points in concrete structures. In this research, properties of concrete spacers are modified by polymer impregnation with Methyl methacrylate (MMA). The process of polymer impregnation is very suitable to concrete spacers due to their small size and high importance. The results showed an increase of breaking load for polymer impregnated spacers by about 250% compared to control specimens. The durability properties of spacers such as water absorption, freezing and thawing and acid resistance of the polymer impregnated spacers were assessed and compared to the unimpregnated spacers. The performance of the degraded spacers due to freezing and thawing and due to acid attack was evaluated by measuring the weight loss and visual inspection. The tests showed that the polymer impregnation improved remarkably the durability properties of concrete spacers.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Odor and Emission Control Technologies · Grouting, Rheology, and Soil Mechanics · Smart Materials for Construction
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
Show source-provided references
1. Specifying, detailing and achieving cover to reinforcement
2. British Standards Institution Bs 7973-1 · 2001
3. Bs En 13670: Execution of concrete structures
4. Influence of reinforcement spacers on mass transport properties and durability of concrete structures10.1016/j.cemconres.2016.05.006 ↗
5. Choosing the right bar support in aggressive environments
6. Performance of spacers in reinforced concrete
7. P. Jahren, Carat - a development programme for new reinforcement chairs, Betong - Industrien 2/94, Oslo, 1994, pp. 25–27.
8. Deterioration process and estimation of durability of reinforced concrete beams in long-term exposure to marine environment
9. High performance concrete cover - why it is needed, and how to achieve it in practice10.1016/0950-0618(96)00007-4 ↗
10. The role of bar supports in combating corrosion in reinforced concrete
11. Evaluation and repair of Algiers new airport building10.1016/S0958-9465(02)00077-X ↗
12. P. Shaw, A. Materialrőntgen, T. Kutti, Field measurement and experience of chloride induced corrosion of reinforcement in submerged structures, AB Fardig Betong, Goteborg, Sweden, 2003.
13. A field study of critical chloride content in reinforced concrete with blended binder10.1002/maco.200905282 ↗
14. Concrete spacers
15. Alzyoud · 2015
16. Performance evaluation of plastic spacers: proposal and development of evaluation methods
17. Production of high performance mortar containing metakaoline and silica fume
18. ACI 548.1R-09, Guide for the use of polymer in concrete, Chapter 3- Polymer-impregnated concrete reported by ACI Committee 2009.
19. L.E. Kukacka, Concrete-Polymer Materials, Fourth Tropical Report, BNL 50328, Federal Center, Denver, Colorado, January 1972.
20. Polymers in concrete: a vision for the 21st century10.1016/S0958-9465(99)00032-3 ↗
21. Influence of soaking and polymerization conditions on the properties of polymer concrete10.1016/j.conbuildmat.2005.02.003 ↗
22. 103-08. Standard method of test for soundness of aggregates by freezing and thawing
23. ASTM Subcommittee D01.46 · 2012
24. Acid resistance, water permeability and chloride penetrability of concrete containing crushed basalt as aggregates
25. Response of concrete to sulfuric acid attack
26. Chemical, microbiological, and in situ test methods for biogenic sulfuric acid corrosion of concrete10.1016/S0008-8846(00)00219-2 ↗
27. Neville · 2011
28. Acid attack of cement based materials-a review, part1. Principle of acidic attack10.1016/S0950-0618(01)00012-5 ↗
29. Recycling drinking water treatment sludge into eco-concrete blocks with CO2 curing: durability and leachability10.1016/j.scitotenv.2020.141182 ↗