(10) WO 2019/172349 Al
(57) Provided is an acid-resistant concrete having high durability. The acid-resistant concrete contains 10 water, an industrial byproduct, an alkali stimulant, an expanding material, a fine aggregate, a coarse aggregate and a high-performance water-reducing agent, and is produced by compacting the components together by centrifugal compaction. The industrial byproduct contains fly ash, a blast furnace slag micropowder and silica fume, and the alkali stimulant contains lime hydrate. The industrial byproduct may contain incineration ash of sewage sludge. After the compaction, the product may be subjected to steam curing, wherein the lead time may be 1.5 hours or longer.
(71) TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION) JP/JP