| abstract |
(57) [Summary] [Problem] To provide a lightweight gap filling material that can be applied to construction for a long time of about 3 to 4 hours, large-scale construction, and construction to which lateral pressure is applied, which is used in civil engineering and construction fields. To provide a rapid void filling method using the same. A lightweight mortar containing air bubbles, a setting accelerator, and a lightweight void filler containing a quick setting material, wherein 5 parts of the quick setting material are added to 100 parts by weight of cement in the lightweight mortar. It is a lightweight void filling material of up to 30 parts by weight, and comprises a rapid void filling method in which a lightweight mortar, a setting accelerator, and a quick-setting material are separately fed, mixed and mixed, and constructed. |