Author: Billy J. HoustonPublisher:
ISBN:
Category : Building
Languages : en
Pages : 36
Book Description
Cold Weather Construction Materials
Author: Billy J. HoustonPublisher:
ISBN:
Category : Building
Languages : en
Pages : 36
Book Description
Cold Weather Construction Materials
Author: Billy J. HoustonCold Weather Construction Materials
Author: B. J. HoustonCold Weather Construction Materials - Part 1 : Field Validation of Laboratory Tests on Regulated - Set Cement for Cold Weather Concreting
Author: Cold Regions Research and Engineering Laboratory (U.S.)Publisher:
ISBN:
Category :
Languages : en
Pages : 27
Book Description
Winter Construction Methods
Author: Charles Shattuck HillPublisher:
ISBN:
Category : Building
Languages : en
Pages : 204
Book Description
Construction in Cold Regions
Author: Terry T. McFaddenPublisher: John Wiley & Sons
ISBN: 9780471525035
Category : Technology & Engineering
Languages : en
Pages : 648
Book Description
Written as a reference on effective engineering practice for construction activities in Arctic and Sub-Arctic regions. It is based on many sources around the world including the Soviet Union and China where people live and work in very low temperatures. Provides a broad look at overall problems found by engineers, contractors and builders, including case histories that illustrate actual projects throughout the cold regions of the world.
Cold Weather Construction Materials
Author: Billy J. HoustonPublisher:
ISBN:
Category :
Languages : en
Pages : 28
Book Description
The U.S. Army carries on construction projects in localities such as Alaska, the northern tier of the United States, northern Europe, Greeland and other arctic sites where the concrete placing season is shortened considerably by the cold climate. At ambient temperatures below 50 F, concreting operations become considerably more expensive since U.S. Army Corps of Engineers specifications require freshly mixed and placed concrete to be protected from ambient temperatures. This report covers part of an investigation to locate and evaluate existing and new cementing materials that allow concrete to be placed at ambient temperatures as low as 15 F.A newly developed cement termed regulated-set cement, which is an accelerated set cement, appeared to have great promise and was selected for study in this stage of the investigation. Both mortars and concretes made with regulated-set cement were studied with the following results: (1) The longer freshly mixed regulated-set cement concrete remains above freezing before exposure to below freezing temperatures the greater the subsequent early strength gain; however, considerable strength gain was exhibited by specimens exposed at 15 F immediately after casting. Specimens protected one hour before exposure exhibited almost as much strength at 28 days age as specimens cured at 70 + or - 3 F for the full time; and (2) The heat development in 3-, 6-, and 12-in.-thick slabs exposed at 15 F immediately after casting peaked in one to two hours at 46.5, 58 and 69 F, respectively, and remained above freezing long enough to gain considerable strength.
Cold Weather Construction Materials
Author: Billy J. HoustonPublisher:
ISBN:
Category : Cement
Languages : en
Pages : 42
Book Description
Cold Weather Construction Materials. Part 2. Regulated-Set Cement for Cold Weather Concreting. Field Validation of Laboratory Results
Author: Billy J. HoustonPublisher:
ISBN:
Category :
Languages : en
Pages : 38
Book Description
The U.S. Army carries on construction projects in localities such as Alaska, the northern tier of the United States, northern Europe, and the Arctic where the concrete placing system is shortened by the cold climate. At ambient temperatures below 50 F, concreting operations become more expensive since Corps of Engineers specifications require freshly mixed and placed concrete to be protected from low ambient temperatures. The overall military construction and maintenance in cold regions program was initiated to locate and evaluate existing and new cementing materials that would allow concrete to be placed at ambient temperatures as low as 15 F.A relatively newly developed cement called 'regulated-set' cement, which is a fast setting, rapid strength gain cement, appeared to have promise and was selected for a detailed study. (Author).
Cold Weather Construction Materials
Author: Billy Joe HoustonPublisher:
ISBN:
Category : Building
Languages : en
Pages : 0
Book Description
The U.S. Army carries on construction projects in localities such as Alaska, the northern tier of the United States, northern Europe, Greeland and other arctic sites where the concrete placing season is shortened considerably by the cold climate. At ambient temperatures below 50 F, concreting operations become considerably more expensive since U.S. Army Corps of Engineers specifications require freshly mixed and placed concrete to be protected from ambient temperatures. This report covers part of an investigation to locate and evaluate existing and new cementing materials that allow concrete to be placed at ambient temperatures as low as 15 F.A newly developed cement termed regulated-set cement, which is an accelerated set cement, appeared to have great promise and was selected for study in this stage of the investigation. Both mortars and concretes made with regulated-set cement were studied with the following results: (1) The longer freshly mixed regulated-set cement concrete remains above freezing before exposure to below freezing temperatures the greater the subsequent early strength gain; however, considerable strength gain was exhibited by specimens exposed at 15 F immediately after casting. Specimens protected one hour before exposure exhibited almost as much strength at 28 days age as specimens cured at 70 + or - 3 F for the full time; and (2) The heat development in 3-, 6-, and 12-in.-thick slabs exposed at 15 F immediately after casting peaked in one to two hours at 46.5, 58 and 69 F, respectively, and remained above freezing long enough to gain considerable strength.