Mortar with hydroxyethyl methyl cellulose for self-compacting concrete

US9346712B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Robert Baumann · Rüschlikon, CH
• Grit Grote · Soltau, DE
• Marc Schmitz · Verden, DE

Key dates

• Filing date: Oct 7, 2013
• Grant date: May 24, 2016
• Expiry date: Oct 7, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/91
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A mortar contains cement, one or more than one mineral additive, superplasticizer, aggregates, a hydroxyethyl methyl cellulose and water, wherein the hydroxyethyl methyl cellulose is characterized by the sum of its hydroxyethyl molecular substitution and methyl degree of substitution is 1.90 or higher and 2.30 or lower and its viscosity as a 2 weight-percent aqueous solution that is below 30,000 milliPascals*seconds.