http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022043349-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_add0e71401888b93d65ba515cfaa72c7 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P40-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2201-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-408 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-91 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B22-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B7-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B22-143 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-14 |
| filingDate | 2021-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cfe0def969d7709ab6ea2e8715ef54f3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d07b27f5f93f8472f992c47432312289 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ee37090adfd3dd836d61ea2eac9bf452 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0cef01fe45e5a14038f0f03da6ddc257 |
| publicationDate | 2022-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2022043349-A1 |
| titleOfInvention | Limestone calcined clay cement (lc3) construction composition |
| abstract | A limestone calcined clay cement construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, and having a Blaine surface area of at least 3800 cm2/g, in an amount of 180 to 400 kg per m³ of the freshly mixed construction composition; b) a supplementary cementitious material having a Dv90 of less than 200 µm, in a total amount of 50 to 100 parts by weight, relative to 100 parts by weight of cementitious binder a), the supplementary cementitious material comprising (b-1) a calcined clay material and (b-2) a carbonate rock powder in a weight ratio of (b-1) to (b-2) in the range of 0.5 to 2; c) optionally, an extraneous aluminate source; d) a sulfate source; and e) a polyol in an amount of 0.3 to 2.5 wt.-%, relative to the amount of cementitious binder a). The composition contains available aluminate, calculated as Al(OH)4–, from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder a), in a total amount of at least 0.08 mol, if the amount of cementitious binder a) is in the range of 180 to less than 220 kg per m³ of the freshly mixed composition, at least 0.06 mol, if the amount of cementitious binder a) is in the range of 220 to less than 280 kg per m³ of the freshly mixed composition, and at least 0.05 mol, if the amount of cementitious binder a) is 280 kg or more per m³ of the freshly mixed composition; and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition further comprises f) an ettringite formation controller comprising (i) glyoxylic acid, a glyoxylic acid salt and/or a glyoxylic acid derivative; and (ii) at least one of (ii-a) a borate source and (ii-b) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g·L-1 or more, organic carbonates, and mixtures thereof; and g) a co-retarder selected from (g-1) α-hydroxy monocarboxylic acids and salts thereof, (g-2) phosphonic acids and salts thereof, (g-3) polycarboxylic acids and salts thereof, and mixtures thereof. The limestone calcined clay cement construction composition is a reduced carbon footprint composition and exhibits high early strength, high final strength, sufficient open time and high durability. Ingredients of the construction composition are abundantly available. |
| priorityDate | 2020-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.