http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112851180-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-91 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B40-0046 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B20-1051 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B20-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-26 |
| filingDate | 2021-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112851180-B |
| titleOfInvention | Viscosity and shrinkage stress reducing additive for prefabricated thin-wall structure concrete and preparation method thereof |
| abstract | The invention discloses an additive for reducing viscosity and shrinkage stress for prefabricated thin-wall structure concrete and a preparation method thereof. The preparation method of the viscosity and shrinkage stress reducing additive for the prefabricated thin-wall structure concrete comprises the following steps: firstly, crushing, ball-milling, calcining, cooling and grinding mineral raw materials to prepare a component A of powder; then polymerizing, crushing, drying and crushing the organic raw materials in a specific molar ratio relationship to prepare a modified component B of powder; then modifying the component A with a specific weight part of the modified component B through a liquid coupling agent, and finally adding a powder component C prepared by reacting, cooling, breaking, drying and crushing raw materials such as polyethylene glycol methyl ether methacrylate, acrylamide, maleic anhydride, octadecanol and the like to mix. The materials used in the invention are pollution-free, the active ingredients react in the whole hydration life cycle of the concrete material, and the viscosity and the shrinkage stress of the concrete with the prefabricated thin-wall structure are reduced through the actions of micro-expansion in the whole hydration cycle of the cement, water slow release, reduction of the water loss rate of the concrete, optimization of the hardened cement stone pore structure, reduction of the surface tension of a capillary pore solution of the concrete and the like, so that the constructability and the self crack resistance of the concrete mixture with the prefabricated thin-wall structure are improved. |
| priorityDate | 2021-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 61.