Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Very high early strength of microwave cured concrete
A high rate of strength development in concrete can benefit a number of important operations in the construction industry, including concrete precasting and pavement repair. In this study, the acceleration of concrete curing with microwave energy is investigated. Type III Portland cement is employed and both mortar and concrete specimens are made and tested. By applying the microwave energy for only 45 minutes, the compressive strength of concrete at an early age of 4.5 hours can reach 19.2 MPa (2785 psi) for w/c=0.55 and 27.2 MPa (3947 psi) for w/c=0.40. For the 0.55 w/c composition, the 7-day compressive strength reaches 37.4 MPa (5417 psi), which is higher than that of conventionally cured specimens. Such performance compares favorably with commercially available rapid hardening concrete as well as concrete containing accelerators, showing microwave curing to be a promising technique for practical applications.
Very high early strength of microwave cured concrete
A high rate of strength development in concrete can benefit a number of important operations in the construction industry, including concrete precasting and pavement repair. In this study, the acceleration of concrete curing with microwave energy is investigated. Type III Portland cement is employed and both mortar and concrete specimens are made and tested. By applying the microwave energy for only 45 minutes, the compressive strength of concrete at an early age of 4.5 hours can reach 19.2 MPa (2785 psi) for w/c=0.55 and 27.2 MPa (3947 psi) for w/c=0.40. For the 0.55 w/c composition, the 7-day compressive strength reaches 37.4 MPa (5417 psi), which is higher than that of conventionally cured specimens. Such performance compares favorably with commercially available rapid hardening concrete as well as concrete containing accelerators, showing microwave curing to be a promising technique for practical applications.
Very high early strength of microwave cured concrete
Extrem hohe Frühfestigkeit von Beton durch Mikrowellenbestrahlung
Leung, C.K.Y. (Autor:in) / Thanakorn Pheeraphan (Autor:in)
Cement and Concrete Research ; 25 ; 136-146
1995
11 Seiten, 8 Bilder, 1 Tabelle, 7 Quellen
Aufsatz (Zeitschrift)
Englisch
Very High Early Strength of Microwave Cured Concrete
| British Library Online Contents | 1995
Very High Early Strength of Microwave Cured Concrete
| Online Contents | 1995
PREPARATION METHOD OF HIGH-EARLY-STRENGTH CONCRETE AND CURED BODY
| Europäisches Patentamt | 2017
HIGH-STRENGTH POROUS CONCRETE COMPOSITION AND HIGH-STRENGTH POROUS CONCRETE CURED BODY
| Europäisches Patentamt | 2018
METHOD OF PREPARING HIGH STRENGTH CONCRETE, HIGH STRENGTH CONCRETE AND CURED BODY
| Europäisches Patentamt | 2015