A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cold weather places serious constraints on today's concreting operations. As temperatures drop, concrete sets more slowly, takes longer to finish, and gains strength less rapidly. If temperatures dip too low, the risk is that the mixing water will freeze, leading to irreparable damage. Current guidance limits cold-weather protection of fresh concrete to insulation, supplemental heating, and temporary shelters to keep the concrete at or above 5 C throughout the curing process. This paper studies the use of commercial admixtures in combination with one another to depress the freezing point of the mixing water and to allow the concrete to gain strength at below-freezing temperatures without thermal protection.
Cold weather places serious constraints on today's concreting operations. As temperatures drop, concrete sets more slowly, takes longer to finish, and gains strength less rapidly. If temperatures dip too low, the risk is that the mixing water will freeze, leading to irreparable damage. Current guidance limits cold-weather protection of fresh concrete to insulation, supplemental heating, and temporary shelters to keep the concrete at or above 5 C throughout the curing process. This paper studies the use of commercial admixtures in combination with one another to depress the freezing point of the mixing water and to allow the concrete to gain strength at below-freezing temperatures without thermal protection.
Off-the-Shelf Antifreeze Admixtures
C. J. Korhonen (author)
2002
38 pages
Report
No indication
English
Physical & Theoretical Chemistry , Ceramics, Refractories, & Glass , Tooling, Machinery, & Tools , Off the shelf equipment , Concrete , Freezing , Commerce , Risk , Water , Shelters , Mixtures , Strength(General) , Gain , Protection , Mixing , Curing , Heat , Cold weather , Antifreezes , Antifreeze admixture , Cold-weather concrete , Winter construction
Antifreeze Admixtures for Concrete
| NTIS | 1997
Antifreeze Concrete Paving: Admixtures Facilitate Cold-Weather Construction
| British Library Online Contents | 2004