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PCC manufacturing method for self-healing cracks
본 발명은 시멘트 경화체의 균열 자기 치유용 분말 압축 캡슐(PCC; Powder Compacted Capsule) 조성물, 분말 압축 캡슐의 제조방법 및 분말 압축 캡슐을 포함한 자기 치유 모르타르에 관한 것이다. 본 발명은 「(a) 시멘트 10~40 wt%와 고로슬래그 미분말 및 플라이애시 중 어느 한 가지 이상의 혼화재 60~90 wt%가 혼합된 분체에, 감수제를 상기 분체 대비 2.0~3.0 wt% 첨가하고, 배합수를 물-분체비 5~20 wt%가 되도록 혼합하는 PCC(Powder Compacted Capsule) 조성물 배합 단계; (b) 상기 PCC 조성물을 모르타르 혼합용 기계식 믹서로 100~300 rpm 조건에서 1~5분간 믹싱하는 단계; (c) 믹싱 결과물을 체가름하여 응집체를 입도 선별하는 단계; 및 (d) 상기 응집체 표면을 PEG(Polyethylene glycol) 또는 PVA(Poly Vinyl Alcohol)로 코팅하는 단계; 를 포함하는 PCC 제조 방법」을 제공한다.
The present invention relates to a powder compacted capsule (PCC) composition for self-healing cracks in a hardened cement body, a method of manufacturing the PCC, and self-healing mortar including the PCC. The present invention provides the method of manufacturing the PCC, which comprises: (a) a PCC composition mixing step of adding 2.0-3.0 wt% of a water reducing agent, compared to a particulate, wherein the particulate is a mixture of 10-40 wt% of cement and 60-90 wt% of one or two admixtures selected from blast furnace slag fine powder and fly ash, and mixing the mixing water to a water-particulate ratio of 5-20 wt%; (b) a step of mixing the PCC composition with a mechanical mixer for mortar mixing at 100 to 300 rpm for 1 to 5 minutes; (c) a step of sieving the mixing result to sort agglomerates by particle size; and (d) a step of coating the surface of the agglomerates with polyethylene glycol (PEG) or polyvinyl alcohol (PVA). The present invention can increase the cohesion of the particulate.
PCC manufacturing method for self-healing cracks
본 발명은 시멘트 경화체의 균열 자기 치유용 분말 압축 캡슐(PCC; Powder Compacted Capsule) 조성물, 분말 압축 캡슐의 제조방법 및 분말 압축 캡슐을 포함한 자기 치유 모르타르에 관한 것이다. 본 발명은 「(a) 시멘트 10~40 wt%와 고로슬래그 미분말 및 플라이애시 중 어느 한 가지 이상의 혼화재 60~90 wt%가 혼합된 분체에, 감수제를 상기 분체 대비 2.0~3.0 wt% 첨가하고, 배합수를 물-분체비 5~20 wt%가 되도록 혼합하는 PCC(Powder Compacted Capsule) 조성물 배합 단계; (b) 상기 PCC 조성물을 모르타르 혼합용 기계식 믹서로 100~300 rpm 조건에서 1~5분간 믹싱하는 단계; (c) 믹싱 결과물을 체가름하여 응집체를 입도 선별하는 단계; 및 (d) 상기 응집체 표면을 PEG(Polyethylene glycol) 또는 PVA(Poly Vinyl Alcohol)로 코팅하는 단계; 를 포함하는 PCC 제조 방법」을 제공한다.
The present invention relates to a powder compacted capsule (PCC) composition for self-healing cracks in a hardened cement body, a method of manufacturing the PCC, and self-healing mortar including the PCC. The present invention provides the method of manufacturing the PCC, which comprises: (a) a PCC composition mixing step of adding 2.0-3.0 wt% of a water reducing agent, compared to a particulate, wherein the particulate is a mixture of 10-40 wt% of cement and 60-90 wt% of one or two admixtures selected from blast furnace slag fine powder and fly ash, and mixing the mixing water to a water-particulate ratio of 5-20 wt%; (b) a step of mixing the PCC composition with a mechanical mixer for mortar mixing at 100 to 300 rpm for 1 to 5 minutes; (c) a step of sieving the mixing result to sort agglomerates by particle size; and (d) a step of coating the surface of the agglomerates with polyethylene glycol (PEG) or polyvinyl alcohol (PVA). The present invention can increase the cohesion of the particulate.
PCC manufacturing method for self-healing cracks
균열 자기 치유용 ＰＣＣ 제조 방법
2023-12-20
Patent
Electronic Resource
Korean
IPC:
C04B
Kalk
,
LIME
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