Carlos Thomas

3 Questions 8 Answers 0 Followers

Questions related from Carlos Thomas

Why are bubbles forming on self-compacting concrete's upper surface?

A mix of self-compacting concrete with remarkable fluidity and without segregation shows a strong accumulation of bubbles on the surface. This accumulation creates a layer of highly porous...

12 December 2014 9,750 6 View

Can anyone help with a problem with geopolymer from alkali activated slags?

We have made a geopolymer using slag, NaOH and microsilica and we have obtained, after a post 60ºC curing, a good compressive strength: 40 MPa at the 3th day. After this test, we tried to...

03 March 2014 2,137 2 View

Exothermic geopolymer mixture?

About the geopolymers: The first results have not been a success. First, we activated kaolin at 850ºC for 4h: MK. We prepared a solution of NaOH (75% pure) in water in a ratio of 1/5. Alter...

10 October 2013 3,436 2 View