High Temperature Chemical Resistant Concrete
High Temperature Chemical Resistant Concrete
(OP)
Hi There!
I'm looking for a concrete mix that can resist high temperature chemical solution (100 degree celcius and ph10 and above or ph3 and below).
I an aware that with the addition of silica fume, the performance of the normal concrete can be improve.
Any other ideas?
Thanks!
I'm looking for a concrete mix that can resist high temperature chemical solution (100 degree celcius and ph10 and above or ph3 and below).
I an aware that with the addition of silica fume, the performance of the normal concrete can be improve.
Any other ideas?
Thanks!





RE: High Temperature Chemical Resistant Concrete
RE: High Temperature Chemical Resistant Concrete
Sulphur concrete is chemical reistant, but I'm afraid it won't fit your requirements because of the high temperature. Sulphur concrete melts at about 120ºC, and I think you would have some trouble already at 100ºC. At room temperature, unmodified sulphur is in orthorombic state and it changes to monoclinic state at 96ºC. Many transformations could cause micro fissures and failure.
Maybe if the contact with the chemical substance is not continued, but it is only accidentally spilled (it can even have a temperature drop), sulphur concrete could have a much better performance.
Anyway, I am only talking based on my own experience with unmodified sulphur (which is not affected by temperatures of 50 - 60ºC). You should contact some of the people that are talking in the two forums about sulfur concrete. Some of them have worked in companies that produce modified sulphur concrete and they will tell you if you can use their sulphur concrete. Dohn316 worked for many years is a US company, and Ramiro Lippi is working in a Chilean one.
Regards,
Violeta.
RE: High Temperature Chemical Resistant Concrete
RE: High Temperature Chemical Resistant Concrete
RE: High Temperature Chemical Resistant Concrete
RE: High Temperature Chemical Resistant Concrete
You may want to contact the PCA or in Canada the CPCA for information. They have a *.pdf document that outlines the various agents and the manner of protection (I can eMail you a copy).
RE: High Temperature Chemical Resistant Concrete
In any case, as you need resistance to both acids and alkalis (and temperature), ceramic materials would have a good performance. I'm thinking about ceramic tiles, used in many chemical labs. And, depending on the application, you could take into account a glass layer.
Good luck,
Violeta.
RE: High Temperature Chemical Resistant Concrete
I'm trying to remediate existing slabs that are in severe condition (cracks, reinforcement exposures..etc).
We have been trying polyurea/ polyurethane as a protective layer in new slabs and existing slab.
However, with direct contact of high temp. & ph chemicals, the layer doesn't seem to be performing well. It works better on top of steel tank roof where the main threat would be rain water.
Glass layer sounds interesting... I will check on that...
As usual, the main priority of the industry is to save cost (including maintenance cost). I'm trying to look for new products that may save the company some $$$.
dik, I would really appreciate it if you can email me a copy of PCA document at : lukmandou@rocketmail.com
and keep me updated with the new containment unit.
Thanks!