Superplasticized concretes for rehabilitation of bridge decks and highway pavements
Abstract
Two mixes, one with medium workability and high cement content suitable for bridge deck replacement and another with high workability suitable for structural and pavement concrete were selected for intensive study. For these mixes, properties of the fresh concrete (slump, vebe time, flow table spread, air content, initial and final setting times) are reported. The effects of retempering are described. The influence of three types of cements on the properties of plastic and hardened concrete is explained. Complete results of the following tests are presented: compressive strength, tensile strength, flexural strength, static modulus of elasticity, dynamic modulus of elasticity, pulse velocity and dry unit weight at 1, 3, 28 and 90 days curing. The selected concretes had high durability and satisfactory resistance against deicer scaling.
- Publication:
-
Interim Report
- Pub Date:
- January 1981
- Bibcode:
- 1981sdsm.rept.....R
- Keywords:
-
- Bridges (Structures);
- Concretes;
- Highways;
- Pavements;
- Superplasticity;
- Compressive Strength;
- Corrosion Resistance;
- Deicers;
- Durability;
- Tensile Strength;
- Engineering (General)