| 摘要 |
PROBLEM TO BE SOLVED: To provide a sulfuric acid-resistant cement hardened body that can secure the acid resistance of the cement hardened body, reduce the thickness of a skeleton cross section, and reduce the production cost at the same time.SOLUTION: A sulfuric acid-resistant cement hardened body comprises a mortar layer 20 formed of a mortar material comprising a cement binder predominantly composed of blast furnace slag, and a reinforcement material 12 buried in the mortar layer 20. The innermost peripheral surface of the mortar layer 20 is treated with sulfuric acid to form a dihydrate gypsum-made barrier layer 21 integral with the mortar layer 20.SELECTED DRAWING: Figure 1 |
