Cement Particle Sizing
MALVERN MASTERSIZER - Particle sizing 0.02 to 2000 microns
Sieving and Blaine surface area determinations have traditionally been used to assess the fineness of cement. Both of these techniques have low reproducibility and are slow. The Mastersizer Laser diffraction analysers provide rapid, reproducible measurements of the whole particle size distribution. Cement samples can be dispersed and measured dry, using a dry powder feeder or dispersed and measured wet in ethanol or iso-propanol.
Click here to contact usMastersizer 2000 Cement System MPS5004R is designed for dry measurements either by manual sample input or by using a robotic sampler. It consists of a Mastersizer 2000, a Scirocco dry dispersion unit with vibration hopper and a CD containing cement calculations and standard operating procedures (SOP).
 |
 |
| Scirocco dry dispersion unit with vibration hopper. Dry powder dispersion avoids the cost and disposal of solvents. | The Mastersizer 2000 pictured here is with the manual wet dispersion unit. The sample is dispersed in a standard laboratory beaker. |
The Tromp curve or Grade Efficiency curve is a widely used to measure of the efficiency of the separators used in the grinding process. Tromp curves can be calculated in the Mastersizer software from the particle size distributions of the feed, overflow and underflow of the separators. The Blaine number is also calculated from the specific surface area given by the Mastersizer.
The ISO 13320 standard details the requirements for Standard Operating Procedures and recommends that Mie theory be used for particles below 50 microns. The Mastersizer 2000 software applies full Mie theory calculations and custom SOP’s. A high level of security ensures that the procedures are always applied, providing global harmonisation of results.
Contact Us
Please note, information requests are only applicable to Australia, New Zealand, Papua New Guinea and Fiji.
