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1. CN113307597 - Nano recycled concrete, processing technology and application thereof

Office
China
Application Number 202110779748.6
Application Date 09.07.2021
Publication Number 113307597
Publication Date 27.08.2021
Grant Number 113307597
Grant Date 08.04.2022
Publication Kind B
IPC
C04B 28/14
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
14containing calcium sulfate cements
E04G 21/02
EFIXED CONSTRUCTIONS
04BUILDING
GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
21Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
02Conveying or working-up concrete or similar masses able to be heaped or cast
B28B 1/00
BPERFORMING OPERATIONS; TRANSPORTING
28WORKING CEMENT, CLAY, OR STONE
BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
1Producing shaped articles from the material
B33Y 70/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
70Materials specially adapted for additive manufacturing
B33Y 10/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
10Processes of additive manufacturing
B33Y 80/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
80Products made by additive manufacturing
CPC
E04G 21/02
EFIXED CONSTRUCTIONS
04BUILDING
GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
21Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
02Conveying or working-up concrete or similar masses able to be heaped or cast
B28B 1/001
BPERFORMING OPERATIONS; TRANSPORTING
28WORKING CEMENT, CLAY, OR STONE
BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
1Producing shaped ; prefabricated; articles from the material
001Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
C04B 28/14
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
14containing calcium sulfate cements
B33Y 70/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
70Materials specially adapted for additive manufacturing
B33Y 10/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
10Processes of additive manufacturing
B33Y 80/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
80Products made by additive manufacturing
Applicants QINGDAO UNIVERSITY OF TECHNOLOGY
青岛理工大学
Inventors LUO JIANLIN
罗健林
ZHANG JIGANG
张纪刚
LI QIUYI
李秋义
GAO SONG
高嵩
HOU DONGSHUAI
侯东帅
TENG FEI
滕飞
Agents 济南圣达知识产权代理有限公司 37221
Title
(EN) Nano recycled concrete, processing technology and application thereof
(ZH) 一种纳米再生混凝土、加工工艺及应用
Abstract
(EN) The invention particularly relates to nano recycled concrete, a processing technology and an application thereof. The existing nano recycled concrete also has the following defects that the corrosion prevention effect is not ideal when a conventional marine corrosion prevention technology is applied to a coastal assembly structure for 3D printing, and in addition, interlayer interface bonding and thixotropy of a conventional 3D printing material are insufficient. The invention provides nano recycled concrete. The nano recycled concrete is prepared from the following raw materials: compound cement, recycled sand, fly ash, polyvinyl alcohol, graphene oxide, steel fibers, organic fibers, a water reducing agent, a thickening time control agent, a mineral admixture and water. The 3D printing concrete has good cohesive water-retaining property and adjacent thin layer interface cohesiveness, a micro-capacitor is formed through combination of GO and PVA electrolyte to avoid formation of a corrosion battery in a concrete thin layer, and the 3D printing concrete has good marine durability and has good application prospects when being applied to coastal assembly structure engineering.
(ZH) 本发明具体涉及一种纳米再生混凝土、加工工艺及应用。现有纳米再生混凝土还具有以下缺陷:常规海洋防腐技术应用于3D打印的滨海装配结构防腐效果不理想,另外,常规3D打印材料层间界面粘结与触变性还存在不足。本发明提供了一种纳米再生混凝土,其原料为复配水泥、再生砂、粉煤灰、聚乙烯醇、氧化石墨烯、钢纤维、有机纤维、减水剂、调凝剂、矿物掺合料和水。该3D打印混凝土拥有良好的粘聚保水性与相邻薄层界面粘结性,通过GO与PVA电解液结合形成微电容器避免混凝土薄层中腐蚀电池的形成,具有良好的海洋耐久性,应用于滨海装配结构工程具有良好的应用前景。
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