Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The present invention discloses a prestress foam concrete preparation method, which comprises: weighing a silicate cement, an admixture, an early strength agent and a foam stabilizer, uniformly mixing, adding water according to a certain water-cement ratio, uniformly stirring, adding a foaming agent, uniformly stirring, immediately injecting into a mold, curing in a curing chamber, demolding, cutting, re-curing, and packaging so as to prepare the prestress foam concrete. According to the prepared prestress foam concrete of the present invention, a certain pressure difference exists between the internal gap and the external environment, such that the sample is always in a certain prestress effect in the presence of the pressure difference, the internal structure is improved, and the generation of the internal micro-crack is effectively avoided so as to significantly improve the mechanical property and the thermal insulation property; and the preparation method of the present invention provides good reference significance for the outer space far from Earth.
The present invention discloses a prestress foam concrete preparation method, which comprises: weighing a silicate cement, an admixture, an early strength agent and a foam stabilizer, uniformly mixing, adding water according to a certain water-cement ratio, uniformly stirring, adding a foaming agent, uniformly stirring, immediately injecting into a mold, curing in a curing chamber, demolding, cutting, re-curing, and packaging so as to prepare the prestress foam concrete. According to the prepared prestress foam concrete of the present invention, a certain pressure difference exists between the internal gap and the external environment, such that the sample is always in a certain prestress effect in the presence of the pressure difference, the internal structure is improved, and the generation of the internal micro-crack is effectively avoided so as to significantly improve the mechanical property and the thermal insulation property; and the preparation method of the present invention provides good reference significance for the outer space far from Earth.
Comparison of Prestress Losses for a Prestress Concrete Bridge Made with High-Performance Concrete
| British Library Online Contents | 2008
Comparison of Prestress Losses for a Prestress Concrete Bridge Made with High-Performance Concrete
| Online Contents | 2008
PRESTRESSED CONCRETE GIRDER AND PRESTRESS INTRODUCTION METHOD
| Europäisches Patentamt | 2020