| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a cross section restorative material which has a small shrinkage ratio, is excellent in the property of following up the deformation of a substrate skeleton and in a crack reducing effect, and hardly generates dust. <P>SOLUTION: The fiber-reinforced mortar composition of the embodiment (1) contains cement, fly ash, fine aggregate covered with a liquid shrinkage reducing agent, a fluidizing agent, an expanding agent, a powdery polymer, a thickening agent and a short fiber. The fiber-reinforced mortar composition of the embodiment (2) contains limestone as the fine aggregate of the fiber-reinforced mortar composition of the embodiment (1). The fiber-reinforced mortar composition of the embodiment (3) comprises that the fine aggregate of the fiber-reinforced mortar composition of the embodiment (1) or the limestone of the fiber-reinforced mortar composition of the embodiment (2) is covered with the liquid shrinkage reducing agent of 0.5-4 parts mass based on 100 parts mass of the cement. The fiber-reinforced mortar composition of the embodiment (4) comprises that the short fiber of the fiber-reinforced mortar composition of the embodiment (1), (2) or (3) is 2-5 parts mass based on 100 parts mass of the cement. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
