OPTEVA® CBA 6800
Quality / strength-enhancing additive
OPTEVA® CBA 6800 is a chemical additive used as a cement constituent (European Standard EN 197, point 5.5) to improve the manufacture and properties of cements.
Recommended Addition Rate
The addition rate of OPTEVA CBA 6800 is typically in the range of 450 to 600g / t of treated cement. However the optimum addition rate of OPTEVA CBA 6800 depends on the characteristics of the material and the grinding circuit and is normally assessed through industrial tests. GCP personnel are available for assistance.
Deviation from the optimum cannot guarantee the expected results and could have an impact on cement characteristics.
Overdosing can lead to a reduction in mill retention time and a possible loss of grinding efficiency, together with “mill flushing” and excessive flowability.
- OPTEVA CBA 6800 is a grinding aid for cement, which reduces the tendency of re-agglomeration of the fine particles, formed during the communition process.
- OPTEVA CBA 6800 permits improvements to the flowability of the finished cement, the efficiency of the mill and separator, and thus increases the production rate with a corresponding reduction in grinding energy consumption.
- Cement produced with OPTEVA CBA 6800 has a lower pack-set tendency and hence can provide advantages during loading and unloading operations.
|Density (g/L)||1,060 - 1,080|
|pH||11.0 - 13.0|
OPTEVA CBA 6800 can be used for the grinding of most cements in open and closed circuit systems.
Mill applications are:
- Portland cements
- Portland blended cements
- OPTEVA CBA 6800 has particular benefit in the production of limestone blended cements because of its good grinding efficiency and improvement to late strength.
How To Use
OPTEVA CBA 6800 should be added on to the feed belt or injected pure or diluted (also with the cooling water) into the mill. For an accurate proportioning of OPTEVA CBA 6800 a volumetric metering pump is suitable. Should conditions require using more than recommended addition rates, please consult your local GCP representative.
OPTEVA CBA 6800 is supplied in 205L drums, in 1,000L plastic containers or bulk. Shelf life is at least 24 months if stored in manufacturer’s containers.
Precaution For Storage
OPTEVA CBA 6800 does not require particular precaution for storage. However it should be protected from freezing. For tanks and containers placed outside a heating system or a re-mixing device is recommended. It is also better to insulate exposed pipelines.
Health and Safety
Read and understand the product label and Safety Data Sheet (SDS) if handling the product directly. All users should acquaint themselves with this information prior to working with the product and follow the precautionary statements. SDSs can be obtained by contacting your local GCP representative or office.
OPTEVA CBA 6800 may degrade Polyvinylchloride (PVC) and other plastic materials. For further advice please read SDS. Accidental release or spillage to be absorbed with an inert, non- combustible material, such as cement, sand or sawdust. Tanks and containers can be cleaned with water.
gcpat.com.au | Australia customer service: 1800 855 525
We hope the information here will be helpful. It is based on data and knowledge considered to be true and accurate, and is offered for consideration, investigation and verification by the user, but we do not warrant the results to be obtained. Please read all statements, recommendations, and suggestions in conjunction with our conditions of sale, which apply to all goods supplied by us. No statement, recommendation, or suggestion is intended for any use that would infringe any patent, copyright, or other third party right.
OPTEVA is a trademark, which may be registered in the United States and/or other countries, of GCP Applied Technologies, Inc. This trademark list has been compiled using available published information as of the publication date and may not accurately reflect current trademark ownership or status.
© Copyright 2020 GCP Applied Technologies, Inc. All rights reserved.
GCP Applied Technologies Inc., 62 Whittemore Avenue, Cambridge, MA 02140, USA
GCP Australia Pty. Ltd., 14 Colebard Street West, Archerfield, Brisbane, Queensland 4108, Australia
This document is only current as of the last updated date stated below and is valid only for use in Australia. It is important that you always refer to the currently available information at the URL below to provide the most current product information at the time of use. Additional literature such as Contractor Manuals, Technical Bulletins, Detail Drawings and detailing recommendations and other relevant documents are also available on www.gcpat.com.au. Information found on other websites must not be relied upon, as they may not be up-to-date or applicable to the conditions in your location and we do not accept any responsibility for their content. If there are any conflicts or if you need more information, please contact GCP Customer Service.
Last Updated: 2021-02-05