Concrete constructionDefinitionsFreezingSpecificationsSurface temperatureThis article discusses the difficulties in creating a simple and practical way to know when air or concrete temperatures should trigger specification requirements for cold-weather concreting. ...
You’ll also want monitoring equipment to make sure you stick to your desired cold weather concreting specification. Depending on what it is, you may have to prevent the concrete temperature from going below a specified value during placement and curing. You may also need to keep the differentia...
Concrete doesn't like the cold—but it is still possible to get it to behave if you understand what's going on.What is cold to concrete and why is it a problem?ACI Committee 306 defines cold weather simply as any time "the air temperature has fallen to, or is expected to fall below...
cold weather concretingantifreeze admixtureBased on ACI 306R-10, the minimum temperature necessary for maintaining concrete hydration and strength gaining is 5... Fatma Karagoel,Ramazan Demirboga,MA Kaygusuz,... - 《Cold Regions Science & Technology》 被引量: 31发表: 2013年 The effect of antifr...
Design and construction of joints in concrete structures. Vol. 146. Thomas Telford, 1995. Collepardi, M., R. Khurana, and M. Valente. "Construction of a dry dock using tremie superplasticized concrete." ACI Special Publication 119 (1989). Den Entwurf, Neue Deutsche Richtlinie Für, Zur ...
Additional practices during the pouring and placing can also help concrete set up and cure properly during cold weather. Theobjective of the ACI 306: Prevent freezing: Concrete should not be allowed to freeze within the first 24 hours after being poured and placed. ...
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In general, Concrete can be placed safely without damage from freezing throughout the winter months in cold climates if certain precautions are taken. Cold weather is defined as a period when for more than 3 successive days the average daily air temperature drops below 5°C (40°F) and ...
Cold weather constructionConcrete constructionCrackingEmbedment (BuildingFormworkReady mixed concreteTemperatureThe cost of concrete construction in cold weather can surpass the cost of ready mixed concrete. The American Concrete Institute (A...
ready mixed concrete(RMC) plantIn cold weather concreting, materials and manufacturing facilities are generally heated to prevent concrete degradation. However, little attention has been paid to the environmental impacts of the heating process. Because heating inevitably requires energy input, ...