http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2015171972-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_74415d2d575191b74012a38dc7a41110 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B7-02 |
| filingDate | 2014-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45e24f45487849be34481637eef87fa5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d044ab23af4e6587f233865cba637663 |
| publicationDate | 2015-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2015171972-A |
| titleOfInvention | Cement composition |
| abstract | The present invention provides a cement composition that suppresses a rapid decrease in fluidity that occurs immediately after kneading and exhibits high strength. The present invention relates to a cement composition including a cement clinker and gypsum, wherein the cement clinker is composed of 62 to 74% by mass of 3CaO.SiO2 and 7 to 12% by mass with respect to the mass of the cement composition. 3CaO.Al2O3 is included, the ratio of gypsum to the mass of the cement composition is 0.4 to 3.0% by mass in terms of SO3, gypsum includes hemihydrate gypsum, and X-ray diffraction of 220 planes of hemihydrate gypsum The intensity ratio of the X-ray diffraction intensity of the 114 plane to the intensity is 65 to 115, and the cement composition contains 40 to 250 mg of tin or a tin compound with respect to 1 kg of cement clinker in terms of tin. The specific surface area is 4000 to 5000 cm2 / g. [Selection figure] None |
| priorityDate | 2014-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.