A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MANUFACTURING METHOD OF MODIFIED RECYCLED AGGREGATE AND MODIFIED RECYCLED AGGREGATE
To provide a manufacturing method of a modified recycled aggregate useful for reducing a carbon dioxide gas, the method obtaining a dense modified recycled aggregate with improved water absorption at a low energy consumption from a concrete mass, and also to provide a modified recycled aggregate having a dense structure with improved water absorption.SOLUTION: A manufacturing method of a modified recycled aggregate includes: a first step of obtaining a recycled aggregate having a water absorption over 3.0% from a crushed matter with a particle diameter 40 mm or less obtained by crushing or milling a concrete mass; and a second step of applying a carbonation treatment to the recycled aggregate obtained at the first step to obtain a modified recycled aggregate containing a calcium carbonate and a silicon dioxide. A modified recycled aggregate is also provided.SELECTED DRAWING: None
【課題】コンクリート塊から、低エネルギー消費量で、吸水率が改善された緻密な改質再生骨材を得る、炭酸ガスの削減に有用な改質再生骨材の製造方法及び吸水率が改善され、緻密な構造を有する改質再生骨材を提供する。【解決手段】コンクリート塊を破砕又は摩砕して得た粒径４０ｍｍ以下の破砕物から、吸水率が３．０％を超える再生骨材を得る第１工程と、前記第１工程で得た前記再生骨材を炭酸化処理して、炭酸カルシウム及び二酸化ケイ素を含有する改質再生骨材を得る第２工程と、を有する改質再生骨材の製造方法及び改質再生骨材。【選択図】なし
MANUFACTURING METHOD OF MODIFIED RECYCLED AGGREGATE AND MODIFIED RECYCLED AGGREGATE
To provide a manufacturing method of a modified recycled aggregate useful for reducing a carbon dioxide gas, the method obtaining a dense modified recycled aggregate with improved water absorption at a low energy consumption from a concrete mass, and also to provide a modified recycled aggregate having a dense structure with improved water absorption.SOLUTION: A manufacturing method of a modified recycled aggregate includes: a first step of obtaining a recycled aggregate having a water absorption over 3.0% from a crushed matter with a particle diameter 40 mm or less obtained by crushing or milling a concrete mass; and a second step of applying a carbonation treatment to the recycled aggregate obtained at the first step to obtain a modified recycled aggregate containing a calcium carbonate and a silicon dioxide. A modified recycled aggregate is also provided.SELECTED DRAWING: None
【課題】コンクリート塊から、低エネルギー消費量で、吸水率が改善された緻密な改質再生骨材を得る、炭酸ガスの削減に有用な改質再生骨材の製造方法及び吸水率が改善され、緻密な構造を有する改質再生骨材を提供する。【解決手段】コンクリート塊を破砕又は摩砕して得た粒径４０ｍｍ以下の破砕物から、吸水率が３．０％を超える再生骨材を得る第１工程と、前記第１工程で得た前記再生骨材を炭酸化処理して、炭酸カルシウム及び二酸化ケイ素を含有する改質再生骨材を得る第２工程と、を有する改質再生骨材の製造方法及び改質再生骨材。【選択図】なし
MANUFACTURING METHOD OF MODIFIED RECYCLED AGGREGATE AND MODIFIED RECYCLED AGGREGATE
改質再生骨材の製造方法及び改質再生骨材
IKEO YOSAKU (author) / TAKEUCHI YUTO (author) / KAWAJIRI SATOSHI (author) / NARA TOMOYUKI (author) / KATAMURA SHOGO (author) / NISHIOKA YUKIKO (author) / KOJIMA MASAO (author) / KONO TAKAO (author) / YANAGIBASHI KUNIO (author) / MATSUSHITA TETSURO (author)
2023-12-26
Patent
Electronic Resource
Japanese
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