DRY MIXES AND CEMENTS COMPRISING CELLULOSE ETHERS HAVING POLYETHER GROUPS AS LUBRICATIVE ADDITIVES FOR ROLLER COMPACTED CONCRETE APPLICATIONS AND METHODS OF USING THEM
The present invention provides a dry mix composition of a powder of an ultra high-viscosity cellulose ether having one or more polyether groups, the cellulose ether having a 1 wt. % aqueous solution viscosity (20 C, 2.55 s−1 shear rate as determined using a controlled rate rotational rheometer) rang...
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| creator | Levin, Jessica R Theuerkauf, Jorg Radler, Michael J Sammler, Robert L Fan, Yi |
| description | The present invention provides a dry mix composition of a powder of an ultra high-viscosity cellulose ether having one or more polyether groups, the cellulose ether having a 1 wt. % aqueous solution viscosity (20 C, 2.55 s−1 shear rate as determined using a controlled rate rotational rheometer) ranging from 10,000 to 100,000 mPa·s, or, preferably, 11,000 to 16,000 mPa·s, a graded aggregate, and a hydraulic cement, or a wet granular mix of the cement, graded aggregate and an admixture therefor including the cellulose ether. When combined with water to form a wet granular hydraulic cement composition, the composition of the present invention behaves like asphalt compositions and has zero or near zero slump, a high lubricity and 13.6 wt. % or less of water, or, preferably, from 5 to 11 wt. % of water, based on the total weight of the dry mix composition. The cellulose ether enables lubricity without impairing compaction and without causing air entrainment. |
| format | Patent |
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When combined with water to form a wet granular hydraulic cement composition, the composition of the present invention behaves like asphalt compositions and has zero or near zero slump, a high lubricity and 13.6 wt. % or less of water, or, preferably, from 5 to 11 wt. % of water, based on the total weight of the dry mix composition. The cellulose ether enables lubricity without impairing compaction and without causing air entrainment.</description><language>eng</language><subject>ARTIFICIAL STONE ; CEMENTS ; CERAMICS ; CHEMISTRY ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; CONCRETE ; LIME, MAGNESIA ; METALLURGY ; REFRACTORIES ; SLAG ; TREATMENT OF NATURAL STONE</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240822&DB=EPODOC&CC=US&NR=2024279118A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240822&DB=EPODOC&CC=US&NR=2024279118A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Levin, Jessica R</creatorcontrib><creatorcontrib>Theuerkauf, Jorg</creatorcontrib><creatorcontrib>Radler, Michael J</creatorcontrib><creatorcontrib>Sammler, Robert L</creatorcontrib><creatorcontrib>Fan, Yi</creatorcontrib><title>DRY MIXES AND CEMENTS COMPRISING CELLULOSE ETHERS HAVING POLYETHER GROUPS AS LUBRICATIVE ADDITIVES FOR ROLLER COMPACTED CONCRETE APPLICATIONS AND METHODS OF USING THEM</title><description>The present invention provides a dry mix composition of a powder of an ultra high-viscosity cellulose ether having one or more polyether groups, the cellulose ether having a 1 wt. % aqueous solution viscosity (20 C, 2.55 s−1 shear rate as determined using a controlled rate rotational rheometer) ranging from 10,000 to 100,000 mPa·s, or, preferably, 11,000 to 16,000 mPa·s, a graded aggregate, and a hydraulic cement, or a wet granular mix of the cement, graded aggregate and an admixture therefor including the cellulose ether. When combined with water to form a wet granular hydraulic cement composition, the composition of the present invention behaves like asphalt compositions and has zero or near zero slump, a high lubricity and 13.6 wt. % or less of water, or, preferably, from 5 to 11 wt. % of water, based on the total weight of the dry mix composition. The cellulose ether enables lubricity without impairing compaction and without causing air entrainment.</description><subject>ARTIFICIAL STONE</subject><subject>CEMENTS</subject><subject>CERAMICS</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</subject><subject>CONCRETE</subject><subject>LIME, MAGNESIA</subject><subject>METALLURGY</subject><subject>REFRACTORIES</subject><subject>SLAG</subject><subject>TREATMENT OF NATURAL STONE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjktqwzAQhr3poqS5w0DWgdgttF0q0tgWSBqhkUK8MiEoq9IG3DvlmpHdHKCrGT7-13N1U2EAq4_IIJwCiRZdZJBkfdCsXVeQMckQI2DsMTD04jBzT2ZYCHSBki9-BpP2QUsR9QFBKKXnh6GlAIGMKdI5V8iIpYmcDBiLznuzeMj9bbAllRQDtZCWBaXEvlRPl9PXlNePu6o2LUbZb_P1Z8zT9XTO3_l3TNzsmrfm_bOuP0T9-j_VHcTxSCQ</recordid><startdate>20240822</startdate><enddate>20240822</enddate><creator>Levin, Jessica R</creator><creator>Theuerkauf, Jorg</creator><creator>Radler, Michael J</creator><creator>Sammler, Robert L</creator><creator>Fan, Yi</creator><scope>EVB</scope></search><sort><creationdate>20240822</creationdate><title>DRY MIXES AND CEMENTS COMPRISING CELLULOSE ETHERS HAVING POLYETHER GROUPS AS LUBRICATIVE ADDITIVES FOR ROLLER COMPACTED CONCRETE APPLICATIONS AND METHODS OF USING THEM</title><author>Levin, Jessica R ; Theuerkauf, Jorg ; Radler, Michael J ; Sammler, Robert L ; Fan, Yi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2024279118A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2024</creationdate><topic>ARTIFICIAL STONE</topic><topic>CEMENTS</topic><topic>CERAMICS</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</topic><topic>CONCRETE</topic><topic>LIME, MAGNESIA</topic><topic>METALLURGY</topic><topic>REFRACTORIES</topic><topic>SLAG</topic><topic>TREATMENT OF NATURAL STONE</topic><toplevel>online_resources</toplevel><creatorcontrib>Levin, Jessica R</creatorcontrib><creatorcontrib>Theuerkauf, Jorg</creatorcontrib><creatorcontrib>Radler, Michael J</creatorcontrib><creatorcontrib>Sammler, Robert L</creatorcontrib><creatorcontrib>Fan, Yi</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Levin, Jessica R</au><au>Theuerkauf, Jorg</au><au>Radler, Michael J</au><au>Sammler, Robert L</au><au>Fan, Yi</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DRY MIXES AND CEMENTS COMPRISING CELLULOSE ETHERS HAVING POLYETHER GROUPS AS LUBRICATIVE ADDITIVES FOR ROLLER COMPACTED CONCRETE APPLICATIONS AND METHODS OF USING THEM</title><date>2024-08-22</date><risdate>2024</risdate><abstract>The present invention provides a dry mix composition of a powder of an ultra high-viscosity cellulose ether having one or more polyether groups, the cellulose ether having a 1 wt. % aqueous solution viscosity (20 C, 2.55 s−1 shear rate as determined using a controlled rate rotational rheometer) ranging from 10,000 to 100,000 mPa·s, or, preferably, 11,000 to 16,000 mPa·s, a graded aggregate, and a hydraulic cement, or a wet granular mix of the cement, graded aggregate and an admixture therefor including the cellulose ether. When combined with water to form a wet granular hydraulic cement composition, the composition of the present invention behaves like asphalt compositions and has zero or near zero slump, a high lubricity and 13.6 wt. % or less of water, or, preferably, from 5 to 11 wt. % of water, based on the total weight of the dry mix composition. The cellulose ether enables lubricity without impairing compaction and without causing air entrainment.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE |
| title | DRY MIXES AND CEMENTS COMPRISING CELLULOSE ETHERS HAVING POLYETHER GROUPS AS LUBRICATIVE ADDITIVES FOR ROLLER COMPACTED CONCRETE APPLICATIONS AND METHODS OF USING THEM |
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