Expansible contraction reduction type of crack prevention composite for cement mortar

Crack formation on existing cement mortar after being cured has been an issue as shrinkage takes place due to features of minerals, cement hydration steps, and drying steps occurring in a time-dependent manner. To this end, provided is cement mortar which is not susceptible shrinkage by using an exp...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, HYUN WOO, WOO, YANG YI, CHO, DO YOUNG, PARK, KEUN BAE, LEE, MYUNG WOON, YOON, KI WON, KO, HYO JIN, PARK, YONG KYU
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	Crack formation on existing cement mortar after being cured has been an issue as shrinkage takes place due to features of minerals, cement hydration steps, and drying steps occurring in a time-dependent manner. To this end, provided is cement mortar which is not susceptible shrinkage by using an expandable material composition to prevent crack formation. To this end, an expandable agent is composed of desulfurized plaster and waste aluminum dust, and is added to a cement mortar composition consisting of cement, fine aggregates, and an admixture, thereby preventing shrinkage taking place while curing cement mortar as well as crack formation. 본 발명은 종래의 시멘트 모르타르가 시간의 경과에 따른 건조 과정, 시멘트 수화 과정 및 광물의 특성에 따라 수축이 일어남에 따라서 경화 후 균열이 발생되는 문제점이 있는바, 균열 발생을 방지하기 위한 팽창재 조성물을 통하여 수축이 없는 시멘트 모르타르를 제공한다. 팽창제는 폐알루미늄 분진과 탈황석고로 구성되며, 시멘트, 잔골재, 혼화재로 구성되는 시멘트 모르타르 조성에 첨가되어 시멘트 모르타르의 양생과정에서 수축을 억제하고 균열발생을 방지한다.