WO2018008513 (A1)

Method of using fly ash

(22) 29.06.2017

(43) 11.01.2018

(57) In the present invention, a sieve having openings of 75 to 20 µm is prepared and by classification using the sieve, fly ash original powder is divided into powder retained by the sieve and powder passed through the sieve. Fly ash fine powder which passed through the sieve is used as a cement admixture, and fly ash course powder which was retained by the sieve is used to manufacture cement clinkers.

(71) Tokuyama Corp (JP)

Issue 2018-4 WO 2018/015873 A1

A novel cement composition incorporating bulk fly ash and nano fly ash

(22) 18.07.2017 (43) 25.01.2018 (57) Aspects of the present disclosure provides a dry cement composition including a mixture of Portland cement and fly ash, wherein said Portland cement is present in...

Issue 2018-12 WO 2018/168637 A1

Method for using fly ash

(22) 08.03.2018 (43) 20.09.2018 (57) A method for using fly ash, said method comprising: measuring the unburned carbon content of fly ash (PCF ash) generated from a pulverized coal combustion boiler;...

Issue 2017-3 WO 2017/000075 A1

Carbonated fly ash as a cement replacement

(22) 30.06.2016 (43) 05.01.2017 (57) A process for producing a blended binder material containing high calcium fly ash, in particular ASTM Class C fly ash, is provided. The process comprises: (i)...

Issue 2018-9 WO 2018/079868 A1

Low-shrinkage and low-carbon green cement composition comprising carbon-mineralized fly ash and early strength type expansion agent, and concrete having same applied thereto

(22) 26.10.2016 (43) 03.05.2018 (57) One embodiment of the present invention provides a green cement composition comprising Portland cement, carbon minerals, an early strength type expansion agent,...

Issue 2021-4 NATIONAL COUNCIL FOR CEMENT AND BUILDING MATERIALS (NCB)

A review of tertiary cementitious systems: Limestone and fly-ash-based composite cements

1 Introduction The construction industry is one of the largest sources of GHG emissions. Around the world, more concrete is used than any other material. About 10 billion t of concrete are laid each...

ZKG 3/2018