| abstract |
Provided are excellent fluidity and retention thereof, and a filler for a steel joint having an appropriate length change ratio and high strength performance, and a method of filling a reinforcing bar joint using the same.n n n In the filler for reinforcing seam containing cement, expanded material, pozzolane fine powder, water-reducing agent and fine aggregate, and the method for filling reinforcing bar joint using the same, the expanded material is calcium alumino ferrite-based expander, and the pozzolane fine powder is silicon dioxide (SiO 2 ) It is a fine silica-like powder whose content rate is 90% or more and a hydrogen ion concentration is in an acidic region, and the said water reducing agent is a polycarboxylic acid type water reducing agent. In addition, the calcium alumino ferritic expandable material is preferably 2,000 to 6,000 cm 2 / g in terms of the specific surface area of the lane, and the fine aggregate is preferably a weight aggregate having a density of 3.0 g / cm 3 or more. |