OPTEVA® Quality Improvers
Enhance cement quality
OPTEVA® quality improvers, often called performance enhancers, allow cement manufacturers to achieve superior cement quality without increasing costs. Additionally increased cement performance can reduce the clinker factor, allowing lower overall production costs and reduced environmental impact (lower CO2 emissions and energy consumption) while maintaining compliance with target performance and regulations.
OPTEVA® Products
| Product Name | Product Data Sheet |
| OPTEC® EC-912 | |
| OPTEVA® CBA 6800 | |
| OPTEVA® CBA® | |
| OPTEVA® ESE® | |
| OPTEVA® TDA® |
Products
- Product Name
- Description
- Key Benefits
- Applications Type
Product Description
OPTEC® EC-912 is an innovative admixture specifically formulated to enhance the overall appearance of architectural and hardscape concrete masonry units.
OPTEC EC-912, through its novel chemistry, improves color vibrancy and controls both primary and secondary efflorescence. OPTEC EC-912 provides a light swipe on the surface of the unit.
- Lowers water absorption
- Controls primary and secondary efflorescence
- Optimized for dosage efficiency
OPTEC EC-912 is used at a rate of 2-4 oz/cwt (130-260 mL/ 100 kg) of cementitious materials including pozzolans. The addition rate is dependent upon the specific set of materials and the desired end properties.
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.
- 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.
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.
The OPTEVA™ CBA® series of additives is a new concept in grinding aids - significantly different from any previous GCP product for the cement industry.
- Increased grinding efficiency
- Increased workability
- Increased cement flowability
- The use of OPTEVA™ CBA® allows the cement producer to reduce fineness and achieve lower unit power costs without sacrificing strength.
The OPTEVA® ESE® series of additives, which involve a newly developed modified alkanolamine, are available for use to enhance the early strength of cement. Unlike other early strength enhancers, OPTEVA® ESE® cement additives provide their performance benefit without the use of chloride or thiocyanate ions.
- Increase the early strength (1, 2 and/or 7 Days) of cement without the addition of chlorides
OPTEVA® TDA® additives are aqueous compositions of grinding aids with set-accelerating, water-reducing, and strength-enhancing compounds, all carefully controlled and accurately blended for constant quality and optimum performance.
- Increased early and long-term compressive strengths
- Increased grinding efficiency
- Increased workability
- Recommended to determine initial blend proportions, grinding efficiency, pack set index, mortar flow, compressive strengths of cements
Enhance the quality of all types of cement
For decades, cement producers have trusted our OPTEVA® CBA®, OPTEVA® ESE® and OPTEVA® TDA® additives for improving the performance and quality of finished cement.
The drive for lower production costs and more sustainable practices is spurring many cement producers to reduce clinker use. However, supplementary materials such as slag, fly ash, and limestone used to replace clinker can decrease cement strength. GCP Quality Improvers alleviate this challenge – enabling producers to increase the substitution rate while maintaining performance through:
- Enhanced early and late strength
- Set acceleration or retardation
- Water demand reduction
Custom solutions for any cement manufacturer
As the market leader in cement additive technology, we build our reputation on more than materials alone. We partner with producers to audit the materials and processes involved in cement grinding to create custom solutions. Whether a producer’s needs include strength enhancement, grinding aids, water reduction or something else, we either have a solution or can create one. We offer tailor-made solutions for individual plants and cements and can even train cement plant personnel and audit grinding systems to ensure that maximum value is extracted from the quality improvers.
OPTEVA® HE is the latest innovation in GCP’s line of cement quality improvers, which provides forward thinking cement producers with more efficient options for gaining high early strength. This is particularly effective for challenging cements, such as such as those prone to yellow- or brown- discolouration, with durability concerns, with low alkalis, with high clinker replacement with SCM’s, as well as those produced with large amounts of alternative fuels or used for fast concreting.
| The OPTEVA® family of products include: | |
| OPTEVA® HE | A new mechanism for chemical activation |
| OPTEVA® CBA® Data Sheet | Quality/Strength Enhancing Additive |
| OPTEVA® ESE® Data Sheet | A Family of Non-Chloride Early Strength Enhancing Additives |
| OPTEVA® TDA® Data Sheet | A Family of Strength Enhancing Cement Additives |