http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107640922-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-32 |
| filingDate | 2017-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107640922-B |
| titleOfInvention | Additive for improving durability of concrete and preparation method thereof |
| abstract | The invention provides an additive for improving the durability of concrete and a preparation method thereof, wherein the additive comprises the following steps: 1) mixing nonyl phenol and formaldehyde in the presence of a catalyst to obtain M1; 2) mixing the prepared M1 with NaOH, adding ethylene oxide, and reacting at the temperature of 120-150 ℃ for 2-5h to obtain M2; 3) mixing glacial acetic acid, tetrabutyl titanate and absolute ethyl alcohol under the condition that the pH value is 3-5 to prepare M3; 4) m3 is added into the M2 obtained above in a dropwise manner at the temperature of 160-180 ℃ to obtain the admixture for improving the durability of concrete. The invention has the following beneficial effects: when the additive prepared by the invention is added into concrete, the durability of the concrete can be effectively improved, and the tolerance to severe environment is effectively improved. |
| priorityDate | 2017-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.