| 摘要 |
<p>PURPOSE:To provide the titled conditioner capable of securing low initial strength and increased strength for a prolonged period, by incorporating vitreous blast furnace slag with lime or normal Portland cement. CONSTITUTION:A ground conditioner comprising a blend of 60-90wt% vitreous blast furnace slag, 10-40wt% lime or normal Portland cement and, if necessary, 15wt% or lower gypsum, wherein 160-200kg of said conditioner is added to 1m<3> of soil. In practice, for example, vitreous blast furnace slag having Blaine's specific surface area of 1,500-5,000cm<2>/g and being ground by wet or dry process is used. A blend is used in a pulverized or slurry form and, in the case of slurry, 50-100pts.wt. water based on 100pts.wt. compsn. of vitreous blast furnace slag, etc. is pref.</p> |
