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Re: Quality control

The bulk density of a particular cement can vary due to compaction or due to chemical reactions with the atmosphere o...

Quality control Question 40

Our clinker chemical composition is as follows: SiO 2 = 21 per cent; Ca O = 64 per cent; Al 2 O 3 = 6.0 per cent; F...

Quality control Question 6

There are two kinds of alkalis contained in clinker-soluble and insoluble alkalis. Please explain about the formation...

Re: Quality control

Alkalis in clinker will preferentially combine with chloride and sulphate, the alkali chloride and sulphate formed is...

Quality control Question 7

We determinate free lime by X-ray, but when we make a program to determinate it. This program has a life period about...

Re: Quality control

I presume you are using X-ray diffraction to determine the free lime but the problem is that the calibration drifts w...

Quality control Question 8

We're suffering from brown clinker. As the results of microscopic analyses, there surely should be reducing condition...

Re: Quality control

It sounds to me that you must have combustion problems. I recommend that you should contact specialists and pay for a...

Quality control Question 9

We have a problem in determining which residue is correct, either the raw meal or the kiln feed. In fact we do get ab...

Re: Quality control

The kiln feed normally contains the dust from the precipitator in addition to the raw meal and therefore the two samp...