®208GelActi- High Performance Rheology Modif ier and Mix Stabilizer

Blocks and Pavers

MineralsI N T E R N A T I O N A L , L L C ®

ActiveI n t e g r i t y. I n n o va t i o n . Te a m w o r k . E xe c u t i o n .

Product DescriptionActi-Gel® 208 is a low dose rheology modi�er that stabilizes mixtures, provides superior compaction, and dramatically improves the performance and paste quality of concrete blocks and pavers. When fully dispersed, Acti-Gel® 208 particles form a unique lattice ‘microstructure’ that supports slightly higher yield stress and thixotropy resulting in a greater ability to stabilize both cement particles and aggregate with reduced deformation. In the block/paver manufacturing process, designs can be optimized to improve the economics of each unit produced. In these mix designs Acti-Gel® 208 will allow an increase in moisture while maintaining shape stability, achieving target strength, and maintaining swipe.

Acti-Gel® 208 is made from a highly puri�ed Mg-aluminosilicate using a patented process. It is non-swelling and shear stable in both low and high salt environ-ments and between pH 2-13.

Acti-Gel® 208 does not a�ect set times or air content.

Acti-Gel® 208 complies with ASTM C 494, Type S.

Packaging

Acti-Gel® 208 is available in liquid or powder form.

PerformanceActi-Gel® 208 is a thixotropic material that improves paste quality, provides more even cement hydration, and dramatically stabilizesconcretes.

When used in an optimized mix design, Acti-Gel® 208 has been shown to increase green strength, decrease rapid chloride perme-ability, and reduce e�orescence – all with outstanding stability and compaction. Please contact your local representative forrecommendations.

Bene�ts:• Save Money

• Decrease Cementitious Content

• Improve Green Strength

• Minimize E�orescence

• Reduce Carbon Footprint

• Improve Durability and Stability

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3 4 Love to n Ci rc l e, S u i te 1 0 0 , S p a r k s, M a r y l a n d 2 1 1 5 2Te l : 4 1 0 - 8 2 5 - 2 9 2 0

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®208GelActi-

Blocks and Pavers

Acti-Gel® 208 can be added in the mixing sequence at various stages depending on the application, using a recommend-ed dry dosage of ~2.5 lbs. per yd3 or ~1 gallon per yd3. Please contact your local representative for recommendations and to schedule a free on-site plant trial.

Guidelines for Use

Product Data Sheet, Rev. January 2017Recommendations and advice concerning dosages, application, performance, and use is provided in good faith, based on our testing, experience, and knowledge of the product under normal conditions. All claims based on performance are believed to be accurate. No guarantee, either expressed or implied, is made with reference to the infringement of any patent. These values represent typical data from samples taken from production batches. They are not considered to be speci�-cations. Results may vary depending upon equipment and procedures. The user of these materials is responsible for determining its suitability for theirapplication with di�erent materials and actual site conditions.

The performance of Acti-Gel® 208 is dependent on mix proportions, local materials, cement chemistry, �neness of mate-rials, and w/c ratio. Potential mix designs for speci�c applications should be evaluated using actual project materials to ensure that the chosen mix design meets project speci�cations. Please contact your local representative for recommendations.

Optimizing Acti-Gel® 208

MineralsI N T E R N A T I O N A L , L L C ®

ActiveI n t e g r i t y. I n n o va t i o n . Te a m w o r k . E xe c u t i o n . w w w. a c t i - g e l . co m

3 4 Love to n Ci rc l e, S u i te 1 0 0 , S p a r k s, M a r y l a n d 2 1 1 5 2Te l : 4 1 0 - 8 2 5 - 2 9 2 0

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Acti-Gel® 208 Enhancements in Concrete Block

8 in. Standard Block Made in Texas, USA

8 in. Standard Block Made in Nebraska, USA

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7 Day Strength (avg. psi)

SAVE $0.017 per Block

SAVE $0.022 per Block

Mix Design Mix 1 Mix 2 Mix 3 Mix 4 Mix 5 Mix 6Batch Wt. (total solids) 5077 5077 5054 5029 4963 4979Cementitious (% Reduction) 0% 0% 4% 9% 20% 17%Moisture (%) 6.50% 7.10% 7.25% 7.10% 7.10% 7.10%Acti-Gel (oz) 0 137 137 137 137 137Compressive Strength Mix 1 Mix 2 Mix 3 Mix 4 Mix 5 Mix 67 Day Strength (avg. psi) 1390 1740 1870 1770 1705 1660Per Block Savings ($) 0 -0.027 -0.015 -0.003 0.017 0.022

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7 Day Strength (avg. psi)

28 Day Strength (avg. psi)

SAVE $0.022 per Block Mix Design Mix 1 Mix 2 Mix 3 Mix 4 Mix 5Batch Wt. (total solids) 7117 7037 6987 6972 6962Cementitious (% Reduction) 0% 11% 19% 21% 22%Moisture (%) 3.90% 4.60% 4.40% 4.80% 4.90%Acti-Gel (oz) 0 128 128 128 128Compressive Strength Mix 1 Mix 2 Mix 3 Mix 4 Mix 57 Day Strength (avg. psi) 2528 2100 2290 2310 205028 Day Strength (avg. psi) 2570 2787 2655 2441 2469Per Block Savings ($) 0 -0.027 -0.015 -0.003 0.022