Effect of geothermal waste on strength and microstructure of alkali-activated slag cement mortars

2003 ◽  
Vol 33 (10) ◽  
pp. 1567-1574 ◽  
Author(s):  
J.I Escalante-Garcı́a ◽  
A.V Gorokhovsky ◽  
G Mendoza ◽  
A.F Fuentes
2013 ◽  
Vol 712-715 ◽  
pp. 905-908
Author(s):  
Qun Pan ◽  
Bin Zhu ◽  
Xiao Huang ◽  
Lin Liu

Properties of alkali-activated slag cements compounded with soluble glasse with a high silicate modulus Ms=2.6 were detailedly studied in this paper, including compressive strength and flexure strength characterictics at the ages of 3,7,28 days and flow values of fresh cement mixtures on a jolting table. As a result, with the compressive strength at the age of 28 days of 95.6-107.8 MPa has been developed, and the flow values and strength characteristics of alkali-activated slag cement mortars increased with increase in a water to cement (alkaline activator solution to slag) ratio, and the flow value (determined on the cement mortar mixtures) would reach 145 mm. Moreover, the development speed of strength characteristics of mortar specimens would be affected negatively by increasing of water demand (requirement).


2014 ◽  
Vol 923 ◽  
pp. 134-137 ◽  
Author(s):  
Pavel Vasiljevich Krivenko ◽  
Grygorii Viktorovich Vozniuk ◽  
Anastasia Maksimovna Goncharova ◽  
Elena Sergeevna Kavalerova

Physico-chemical processes of hardening of a cement stone are accompanied with shrinkage is known to result in crack formation, loss of concrete structure integrity and finally, to shorter service life. These drawbacks make problems in using traditional portland cement based mortars for joint grouting and crack repair in concretes. Known-in-the-art solutions based on calcium aluminate cements are also not efficient due to high cost and instability of cement stone hydration products over time in various service conditions. Shrinkage-compensating alkali activated slag cement mortars are proposed to solve the problems connected with crack repair and joint grouting. They are simple in preparation and application and have a set of high physico-mechanical properties, excellent durability and reasonable cost.


2021 ◽  
Vol 289 ◽  
pp. 123201
Author(s):  
Juan He ◽  
Wenbin Bai ◽  
Weihao Zheng ◽  
Junhong He ◽  
Guochen Sang

Author(s):  
Xiao Huang ◽  
Chen Xin ◽  
Jiang-shan Li ◽  
Ping Wang ◽  
Shuai Liao ◽  
...  

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