| 摘要 |
PURPOSE:To provide a concrete capable of being uniformly and densely filled between the steel materials of a steel frame, in steel material-covering parts and in the all corners of the steel frame, even when the concrete is not compacted with oscillation. CONSTITUTION:The maximum dimension of an aggregate is controlled to 1/3 to 1/5 (but 20mm when exceeds the 20mm) of a distance between the steel materials of a steel frame 8 or the cover thickness of the steel materials, and the aggregate is mixed with water, cement, fine aggregates, additives and finely powdery admixture, while adjusting the viscosity of the mixture with the finely powdery admixture. |
