KR101879727 (B1)

Eco-friendly low-active CSA-based cement to replace ordinary Portland cement (OPC)

(22) 06.07.2017

(43) 18.07.2018

(57) The present invention relates to an eco-friendly, low-activity CSA-based cement which can replace ordinary Portland cement using limestone and industrial by- products. The clinker as a semi-finished product of cement comprises 20 to 40 % by weight of cubic calcium sulfoaluminate, Wherein the raw material is composed of 40 to 60 wt% of ferrite and 1 to 15 wt% of ferrite and is composed of components of CaO, SiO, AIO, FeO, SO and Mg0 at 1200 to 1350 °C followed by firing. The cement clinker has the effect of reducing the amount of limestone to be used rather than ordinary Portland cement and recycling industrial byproducts as useful resources by using waste aluminum slag and dust, which are low in Al content and high in Mg0 content. In addition, compared to Portland cement, the production temperature is lowered by 100 °C or more to reduce the energy consumption, and the CO generation can be greatly reduced by the reduction of fuel amount and the effect of reducing limestone usage.

(71) Asia Cement Co Ltd (KR)

Related articles:

Issue 2016-1-2 US 2015/0321953 A1

Cement blend compositions

(22) 29.11.2013 (43) 12.11.2015 (57) A computer simulator predicts the performance of neat Portland cement systems, or Portland cement systems containing supplementary cementing materials (SCM)....

more
Issue 2009-12

New cement

Scientists at Green World Crete, LLC, a Florida headquartered green materials technology company, have invented a low-carbon emission cementitious product-Geo-Green CreteTM. This new product is poised...

more
Issue 2019-3 US 10 167 420 B1

Loss circulation compositions (LCM) having Portland cement clinker

(22) 19.10.2017 (45) 01.01.2019 (57) Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may...

more
Issue 2015-7-8 EP 2 876 094 A1

Cement and calcium sulphate based binder composition

(22) 03.04.2014 (43) 27.05.2015 (57) The invention concerns a composition containing a) 2 to 80 weight % of Ordinary Portland Cement with respect to the total weight of the composition b) 2 to 80...

more
Issue 2017-7-8 WO 2017/072571 A1

Method of producing a cement composition

(22) 17.10.2016 (43) 04.05.2017 (57) A method of producing a cement composition, which comprises Portland cement and at least one added component, comprising the steps of : – storing Portland cement...

more