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Uses of Microspheres Practiced by the Cenosphere Exporter India
Posted: Sep 26, 2017
Cenosphere is sometimes also known as microspheres which are used in a wide variety of materials from plastic and caulking to paints and finishes. The Cenosphere exporter India uses it in concrete as a countertop which includes the following is not known widely.
- A lightweight aggregate
- A workability enhancer and extra-fine aggregate
- A bulk filler which reduces shrinkage in cement grouts.
Lightweight aggregator – Cenospheres are used a lightweight aggregate because it can replace some portion of the normal-weight sand used in concrete as they contains a density lesser than water (averaging 0.7 vs. water’s 1.0) and quartz sand particles typically have a density of approx. 2.65. Therefore, 1 pound of cenosphere contains the same absolute volume as about 3.8 lbs. of sand. Balanced concrete mix practices a variety of aggregate sizes and particles. The wider the particles size is, the better the granules pack together and thus, less cement paste is required to cover and provide better lubrication for good workability. Most cenospheres are grinded to bring their some large particle sizes to the same size as smallest. Generally, the cenosphere exporter India uses the cenosphere to replace sand in the concrete mix in equal volume. More the particles sizes, the better sand replacement percentage is possible.
Workability enhancer – Cenospheres have very tiny spherical granules and this is why, they act just like microscopic ball bearings in a concrete paste. Adding cenosphere to the concrete mix improves the density and strength of the concrete mix by providing better coverage. It improves tolerability and finishability of the mix additionally. Classically doses of 1% to 5% by weight of aggregate are added to a concrete mix for enhancing workability.
Bulk filler – As cenospheres are very fine granules, which are generally light in color, they are considered as ideal for using in cement grout slurry. Adding cenosphere not only increases the volume of grout without the need of adding more cement, but, the fine aggregate gradation of the granules also reduces the shrinkage. In spite of everything, cement grout is still a type of concrete, so the same rules are applied for it as well. In the end, the spherical shape makes packing pinholes easier and effective due to the scrubbing action practiced by the particles. Thus, the spherical shapes are much likely to "roll" into narrow holes better than pointed crushed particles. Distinctively cenosphere doses are around 10% to 30% by weight of cement.
Chemical properties mentioned by the Cenosphere exporter India:
- Silica: 48% – 74%
- Alumina: 26% – 45%
- Iron: 1.5% – 4.0%
The Author is associated with the Durgesh Merchandise Pvt. Ltd. and has written many contents on cenospheres, microsphere and other types of foam materials.