Penapatch Structural HB80
High Build, High Strength Polymer modified Structural Repair Mortar Grout.
High Build, High Strength Polymer modified Structural Repair Mortar Grout.
Penapatch Structural HB80 is a high strength; high build shrinkage compensated structural repair mortar.
Structural HB80 is designed to be used for vercal or horizontal applicaons. Structural HB80 has high, ulmate compressive strength and high abrasion resistance.
The specially selected cements and polymers contained in Structural HB80 provide a mortar with strong adhesion to concrete and masonry on vercal and horizontal substrates with negligible shrinkage. Structural HB80 requires the addion of water only.
| (obtained using 2-6 litres of water per 20kg bag) | |
| Appearance | Grey powder |
| Fresh wet density | Approx. 2200 kg/m³ dependent on consistency used |
| Applicaon Temp | Minimum 5˚ C Maximum 35˚ C |
All surfaces must be free of oil, grease, dust, plaster, paint and any other contaminaon that will inhibit the bond.
Any cracked or weakened surface should be removed and repaired to provide a solid foundation.
It is recommended that for large areas a minimum depth of 5mm be prepared as to avoid excessive feather edging or skim coating.
Break out the repair area to a minimum of 5mm up to the saw cut edge.
Scabbing or high pressure water blasng should be used to remove laitance and provide a mechanical key.
If any corroded steel is present remove all loose scale and corrosion/rust deposits. Grit blasng is effecve in removing corrosion, and all steel including re-bars should be cleaned to a bright condion.
Immediately aer cleaning steel, the steel should be treated with Aek Zinc Rich Primer. This will stop further oxidaon and corrosion.
Concrete/Masonry: Priming is necessary.
The substrate should be pre-soaked with water and excess water removed prior to applicaon of Rendergrip B.
For damp or repairs exposed to occasional or permanent dampness, the substrate must be primed with Epilox Binder.
For very porous substrates all masonry surfaces should be primed with Aek Rendergrip B. Allow the primer to reach a tacky consistency before applying Penapatch Structural HB80.
Steel/Rebar: Exposed steel and rebar should be primed with Aek Zinc Rich Primer.
Remove all loose corrosion deposits on steel. Steel should be cleaned to a bright condion. On compleon of cleaning, prime steel with Aek Zinc Rich immediately.
Note: If the Rendergrip B primer dries prior to applicaon of Structural HB80, it is imperave that the Rendergrip B is re-applied and allowed to reach a tacky consistency prior to the applicaon of Structural HB80.
If the Rendergrip B is too wet, the ulmate buildup of the Structural HB80 will be difficult as slump will occur at the interface of the concrete substrate and repair mortar.
In the case where Epicrete is used as a primer, the Epicrete must be tacky NOT DRY prior to the applicaon of the Structural HB80.
Penapatch Structural HB80 is ready to use- simply add the powder to 2.6 – 2.9 litres of water and mix using a mechanical forced acon mixer with a high shear spiral mixing paddle.
Do not use free fall mixers.
Always add the powder to the pre-measured water and mix unl a homogenous mix is obtained which is lump free.
Mixing normally takes 3-5 minutes.
Any shorter mixing me will result in an inconsistent mix.
Do not mix part bags
Do not mix by hand
Do not add excess water.
Do not add more than 2.9 litres of water
Excess water will reduce the ultimate (final) strength and extend the drying me of the product. Addtional or excess water will increase the sag and reduce the build-up of the mortar.
Only mix the quanty of material that can be used within the set me of the material. Discard partially set or hardened material.
Apply the mixed material to the prepared surface using a trowel or a gloved hand.
Thoroughly compact the mortar into the prepared and primed substrate and around the exposed steel reinforcement and re-bars. A smooth surface can be obtained using a steel trowel.
Do Not Overwork The Surface
Structural HB80 can be applied using wet applicaon technique. The mortar is pre-mixed with the required dosage of water and then pumped through a delivery hose through a spray gun with a suitable nozzle. Consult Aek for further informaon.
Do not apply at temperatures below 5º C and falling. All temperatures of 5º C and below, the use of warm water is recommended.
Do not apply at temperatures above 35º C as inial set will commence early and the product will be difficult to apply. It is recommended that chilled/cold water be used to mix the product.
Curing should be conducted is accordance to good concrete pracse and Aek recommend the use of suitable curing compound, Curecon A, applied in accordance to Technical Data Sheet.
Structural HB80 can be over coated with the Aftek range of decorave and protecve coangs. All coangs may be applied over the Curecon A; hence removal of the curing compound is not necessary.
