Polymer concrete patching materials
Conference
·
OSTI ID:5185983
The increased use of deicing salts is causing rapid deterioration of portland cement concrete bridge decks. Soluble chlorides cause corrosion of the steel reinforcing rods with a corresponding increase in volume of the rods. This expansion causes stresses in the concrete which result in delaminations and surface spalling. The repair of surface spalls with portland cement concrete can only be made if traffic can be avoided for several days. A patching material which would allow traffic to resume over the repaired area in a few hours was needed. Polymer concrete (PC) was developed to repair deteriorated portland cement concrete. Polymer concrete is defined as a composite material in which the aggregate is bound together in a dense matrix with a polymer binder. The aggregate is mixed with a monomer mixture and subsequently cured in place. Polymer concrete combines the premix characteristics of portland cement concrete with high strength, long term durability properties and fast cure times. PC placed at temperatures between 35/sup 0/F and 95/sup 0/F attains strengths greater than 5000 psi in 2 hours. The high early strength of PC is suitable for use in the repair of highway structures where traffic conditions allow closing of the area for only a few hours.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- EY-76-C-02-0016
- OSTI ID:
- 5185983
- Report Number(s):
- BNL-23369; CONF-771079-1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360403* -- Materials-- Polymers & Plastics-- Mechanical Properties-- (-1987)
360603 -- Materials-- Properties
ALKALI METAL COMPOUNDS
ALLOYS
BRIDGES
BUILDING MATERIALS
CEMENTS
CHEMICAL COMPOSITION
CHLORIDES
CHLORINE COMPOUNDS
COMPOSITE MATERIALS
COMPRESSION STRENGTH
CONCRETE-PLASTIC COMPOSITES
CONCRETES
HALIDES
HALOGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
MAINTENANCE
MATERIALS
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
POLYMERS
REINFORCED MATERIALS
SODIUM CHLORIDES
SODIUM COMPOUNDS
STEELS
360403* -- Materials-- Polymers & Plastics-- Mechanical Properties-- (-1987)
360603 -- Materials-- Properties
ALKALI METAL COMPOUNDS
ALLOYS
BRIDGES
BUILDING MATERIALS
CEMENTS
CHEMICAL COMPOSITION
CHLORIDES
CHLORINE COMPOUNDS
COMPOSITE MATERIALS
COMPRESSION STRENGTH
CONCRETE-PLASTIC COMPOSITES
CONCRETES
HALIDES
HALOGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
MAINTENANCE
MATERIALS
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
POLYMERS
REINFORCED MATERIALS
SODIUM CHLORIDES
SODIUM COMPOUNDS
STEELS