NON-CONTRACTING MORTAR COMPOSITION AND METHOD FOR MANUFACTURING HEAVY WEIGHT CONCRETE

• Main Authors: KASAI HIROSHI, YANAGISAWA AYUMI, TAKAGI SATOSHI, TOMOE SHIRO
• Format: Patent
• Language: English; Japanese
• Published: 18.06.2020
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; PERFORMING OPERATIONS; REFRACTORIES; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE; WORKING CEMENT, CLAY, OR STONE

To provide a non-contracting mortar composition that is excellent in flowability and can retain flowability capable of grout, e.g., even after two hours have elapsed after kneading and mixing it, and can apply to the production of heavy weight concrete with its density of 4 t/mor more.SOLUTION: A non-contracting mortar composition for producing heavy weight concrete with its density of 4 t/mor more comprises cement, an expansive admixture, a pozzolan fine powder, a gas generating agent, a water-reducing agent, and fine aggregate.SELECTED DRAWING: None 【課題】流動性が良好で練り混ぜ後、例えば２時間経過後もグラウト可能な流動性を保持でき、密度４ｔ／ｍ３以上の重量コンクリートの製造に適用可能な無収縮モルタル組成物を提供する。【解決手段】密度４ｔ／ｍ３以上の重量コンクリート製造用の無収縮モルタル組成物であって、セメントと、膨張材と、ポゾラン微粉末と、発泡剤と、減水剤と、細骨材とを含有してなる無収縮モルタル組成物である。【選択図】なし