Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction Productivity Advancement Research (CPAR) Program. Performance of Concretes Proportioned with Pyrament Blended Cement
Pyrament Blended Cement (PBC) is known in the construction industry for its ability to gain strength rapidly and achieve very high early strength. The Waterways Experiment Station (WES) conducted a laboratory evaluation of concretes made with PBC to determine if these concretes perform better than concretes made with ordinary portland cement (OPC) in tests of various aspects of concrete durability. For this study, six concretes based on PBC-XT were proportioned with three cement contents and two aggregate types. The objective was to determine if the cement, advertised as giving high early strength and marketed initially as a rapid-construction material, is durable enough to justify its use for long-term performance in addition to shorter construction time. Concretes prepared from PBC-XT cement were subjected to analyses of its resistance to damage during cycles of freezing and thawing, expansion in a high-sulfate environment, damage from underwater abrasion, penetration of dissolved chlorides, scaling from deicing chemicals, and expansion from chemical interaction between alkalies in the cement and silica in aggregate. In all categories, the PBC-XT cement concretes achieved or exceeded expected performance based on the manufacturer's product literature. In all but the last category, PBC-XT concretes performed better than is generally expected of high-quality OPC concretes. Concrete permeability, High-early strength, Rapid-setting concrete. Blended hydraulic cement, High-performance concrete, Durability, Rapid chloride permeability.
Construction Productivity Advancement Research (CPAR) Program. Performance of Concretes Proportioned with Pyrament Blended Cement
Pyrament Blended Cement (PBC) is known in the construction industry for its ability to gain strength rapidly and achieve very high early strength. The Waterways Experiment Station (WES) conducted a laboratory evaluation of concretes made with PBC to determine if these concretes perform better than concretes made with ordinary portland cement (OPC) in tests of various aspects of concrete durability. For this study, six concretes based on PBC-XT were proportioned with three cement contents and two aggregate types. The objective was to determine if the cement, advertised as giving high early strength and marketed initially as a rapid-construction material, is durable enough to justify its use for long-term performance in addition to shorter construction time. Concretes prepared from PBC-XT cement were subjected to analyses of its resistance to damage during cycles of freezing and thawing, expansion in a high-sulfate environment, damage from underwater abrasion, penetration of dissolved chlorides, scaling from deicing chemicals, and expansion from chemical interaction between alkalies in the cement and silica in aggregate. In all categories, the PBC-XT cement concretes achieved or exceeded expected performance based on the manufacturer's product literature. In all but the last category, PBC-XT concretes performed better than is generally expected of high-quality OPC concretes. Concrete permeability, High-early strength, Rapid-setting concrete. Blended hydraulic cement, High-performance concrete, Durability, Rapid chloride permeability.
Construction Productivity Advancement Research (CPAR) Program. Performance of Concretes Proportioned with Pyrament Blended Cement
T. B. Husbands (Autor:in) / P. G. Malone (Autor:in) / L. D. Wakeley (Autor:in)
1994
107 pages
Report
Keine Angabe
Englisch
Construction Equipment, Materials, & Supplies , Civil Engineering , Underwater Construction & Habitats , Concrete , Construction materials , Abrasion , Chlorides , Damage , Environments , Expansion , Freezing , Interactions , Laboratories , Penetration , Permeability , Quality , Resistance , Sulfates , Test and evaluation , Thawing , Waterways , Hardened structures , Structural components , Compressive properties , Strain(Mechanics) , PBC(Pyrament Blended Cement) , Hydraulic structures , Underwater construction , Concrete durability , Hydraulic cements , OPC(Ordinary Portland Cement)
Construction Productivity Advancement Research Program (CPAR)
| British Library Conference Proceedings | 1989