Concrete with lightweight aggregate having lattice structure and method of manufacturing the same

• Main Authors: PARK MYUNG JU, PARK KWANG MIN
• Format: Patent
• Language: English; Korean
• Published: 19.12.2022
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; PERFORMING OPERATIONS; REFRACTORIES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present invention relates to concrete with a lightweight aggregate having a lattice structure, which comprises: 110 to 160 parts by weight of a lightweight aggregate prepared by injecting a low-viscosity urethane compound into a lattice structure, prepared by a 3D printer by using polyamide 12 (PA12) or AlSi_12Mg; 45 to 55 parts by weight of water mixed to maintain a water/binder ratio of 35 to 45 %; 20 to 30 parts by weight of fly ash mixed with cement to form a binder; and 180 to 220 parts by weight of a fine aggregate, with respect to 100 parts by weight of cement. 본 발명은, 시멘트 100중량부에 대하여, 폴리아미드 12(Polyamide 12; PA12) 또는 AlSi12Mg을 재료하여 3D프린터에 의해 제조되는 격자구조체에 저점도 우레탄 화합물을 주입하여 제조되는 경량골재 110~160중량부; 물/바인더 비율이 35~45%을 유지하도록 혼합되는 물 45~55중량부; 상기 시멘트와 혼합되어 바인더를 이루는 플라이애시 20~30중량부; 및 잔골재 180~220중량부를 포함하는 것을 특징으로 한다.