ACS Grout HF30 is a high strength, shrinkage compensated, low viscosity cement based grout containing a blend of selected premium grade cements, graded fillers and special additives which facilitate controlled expansion in both the plastic and hardened states.
ACS Grout HF30 is designed to flow into voids and gaps with un-interrupted flow without being affected by rapid gelation of the grout properties.
ACS Grout HF30 is supplied as a ready to use powder which when mixed with water, produces a free flowing and pumpable, self consolidating precision grout. It has been specially designed to minimise bleed and segregation over a large range of applications.
ACS Grout HF30 is ideally suited for use where large voids require in-filling such as behind bulkheads, seals, and stopping’s or where broken strata requires consolidation.
Uses
- Filling voids behind bulkheads, seals or stoppings
- Consolidating broken strata in excavated workings
- Foundations for pit and pipe installations
- Machine base plates
- Bridge bearing pads
- Piers and jetties
- Securing boat moorings
- Anchor bolts
- Crane rail sole plates
- Stanchion plates
Storage
If kept dry and stored in its original condition, ACS Grout HF30 will keep for up to 6 months. The shelf life of the product may be reduced if subjected to high temperatures and high humidity.
Application Guidelines
Surface Preparation
All substrates should be sound, clean and free from dust, oil, or any other surface contaminants such as curing compounds and release agents. All bolt holes and fixing pockets must be cleaned out by flushing with clean water.
To maximise adhesion, we recommend that surfaces be mechanically abraded or roughened.
After preparation is complete, saturate the surface with clean water for a minimum of four hours prior to grouting. Care should be taken to remove all surplus water prior to grouting.
Formwork
As ACS Grout HF30 is a free flowing grout, it is important to construct the formwork to be leakproof. Formwork should also be built so that a grout head above the level of the underside of the base plate is maintained. This will enable gravity flow to completely fill the void to be grouted.
To allow easy removal of the forms, coat the formwork with oil and ensure adequate air holes are installed to facilitate removal of bleed water.
Mixing
ACS Grout HF30 should be mixed using a high speed drill and spiral mixer, mechanical grout mixer, or a suitable high sheer drum mixer. As ACS Grout HF30 is formulated to offer extended setting age. Caution needs to be observed to ensure grout does not harden in pumps or mixers.
Because continuous grout flow is essential, ensure that the mixing method and labour is sufficient to enable continuity of the operation.
- Add the correctly measured water content into the mixing vessel, to achieve the selected consistencies. The amount of clean water to be added per 20kg bag should be (shown on the downloadable TDS).
- Slowly add the total contents of the ACS Grout HF30 bag and mix continuously for three to five minutes until a smooth and even consistency is obtained. Allow to stand so any entrapped air can escape.
Placement
The mixed grout should be placed within 120 minutes to gain the full benefit of the expansion. Although ACS Grout HF30 can be placed in large volumes and thicknesses we recommend that a minimum of 10mm be observed. It is essential to maintain continuous flow of the grout.
Pour the mixed grout from only one side of the void, to eliminate the entrapment of air. The pouring side should be raised by means of a hopper or grout box to maintain a minimum 150mm head of grout at all times.
For larger applications ACS Grout HF30 can be placed by means of pumping.
Temperature and Working Limitations
For maximum performance it is important to maintain the grout, base concrete and steel substrates within a temperature range of 18 – 25ºC prior to, during and for 48 hours following placement of the grout.
Grouting should not take place if the temperature is 5ºC or lower. Warm water can be used to accelerate strength development during colder weather.
When temperatures exceed 30ºC, grouting should be sheltered from the heat or conducted early morning. Keep materials cool and use cold water in the mix.
Do not submerge grout for 2 hours post setting.
Curing
It is necessary to cure all exposed surfaces. The use of a concrete curing membrane, wet hessian or continuous water spray is recommended.
Cleaning
All tools should be rinsed with water immediately after use to remove all traces of ACS Grout HF30 .
Health and Safety
During use, avoid inhalation of dust and contact with the skin and eyes. Wear suitable clothing, gloves, eye protection and respiratory protective equipment.
If contact with the skin occurs, thoroughly clean the area with plenty of fresh water and soap. In case of contact with the eyes rinse with plenty of fresh water and seek medical advice.
If swallowed, seek medical attention immediately – do not induce vomiting.
For further information consult the Safety Data Sheet (SDS) and read the product label carefully before use.
Downloads
Features and Benefits
- Excellent flow retention
- Self compacting
- Cohesive – Can be poured or tremied
- Dual system compensates for shrinkage in both the plastic and hardened states
- High 28 day strengths and low permeability ensure durability of the hardened grout
- Excellent resistance to impact, vibration and thermal variations
- Chloride free, non-corrosive to steel or iron
- Pre-packed to ensure batching and blending consistency and on-site convenience
- Ideal for pumping, injecting and pouring over a number of applications and environmental conditions
- Exclusive formulation makes ACS Grout HF30 ideal for use in areas exposed to water, including marine and salt water environments
Standards Compliance
ACS Grout HF30 conforms to ASTM C 1107-02 (Type C) Standard Specification for Packaged Dry, Hydraulic Cement Grout (non-shrink) and AS1478.2 – 2005 Methods of Sampling and Testing Admixtures for concrete, mortar and grout.
Packaging
ACS Grout HF30 is available in 20kg bags or 1 tonne bulk bags.
For further information consult the Safety Data Sheet (SDS) and read the Technical Data Sheet (TDS) carefully before use. SDS and TDS documents are available in the Resources section of this website and by contacting ACS Customer Service support line on 1800 077 744.
