Wah Kee - Epirez - products

GENERAL PURPOSE CLASS C GROUT

CLASS C GROUT is a cement based, non-shrink, non-metallic grout for all general purpose grouting requirements.
CLASS C GROUT is supplied ready-to-use as a dry powdered product requiring only the addition of water to be used for a wide range of applications.
CLASS C GROUT is a dual expansion, Class C grout meeting the requirements of the U.S. Corps of Engineers CRD-C-621-83 for non-shrink grouts.

Applications

• Machine baseplates	• Underpinning
• Structural columns	• Holding down bolts
• Bridge bearings	• Rail grouting

Features

• Non-shrink	• Can be dry packed or pumped
• Wide range of applications	• Good working time
• Non-chloride	• Dual expansion

General Properties

Shelf Life	:	12 months, unopened, dry
Work Time	:	30 minutes at 25 degrees Celsius at 4.5 litres water
Yield	:	approximately 14 litres (see below)
Initial Set	:	1 hour minimum
Final Set	:	2 hours minimum


Compressive Strength (AS 2073)	3.0ltrs Water/25 kg	4.5 ltrs Water/25 kg
1 day	26 MPa	17 MPa
7 days	52 MPa	40 MPa
28 days	66 MPa	55 MPa

Application Guidelines

Foundation Preparation
All surfaces should be free from oil, grease, laitance or loose material. If the concrete surface is loose, defective or has laitance, it should be cleaned to a sound base. Roughen surface to ensure a good bond to existing concrete. Clean thoroughly with water, leaving concrete saturated, but free of standing water.

Surface preparation guidelines cannot cover all site or field contingencies and it is always recommended that an on-the-spot adhesion test be performed as part of the Standard Quality Assurance audit for the project.

Mixing
CLASS C GROUT should be thoroughly mixed to the desired consistency by varying the amount of water used. Do not exceed recommendation.

CONSISTENCY	WATER RATIO	YIELD
CONSISTENCY	Litres/25 kg bag	Litres/25 kg bag	Bags/cubic M
Dry Pack	2.5	12.1	83
Trowellable	3.0	12.2	82
Pumpable	4.0	13.1	77
Flowable/Pourable	4.5	13.5	74

Slowly add the grout powder to 90% of the measured amount of water while mixing with a low speed (400rpm) power mixer fitted with a suitable paddle. Refer to EPIREZ for recommendations. Mix frout for two minutes before adjusting consistency with remaining water. Mix until homogeneous for another three minutes. Once mixing and placing the grout has begun, it should be a continuous operation. Do not mix more grout than can be placed within 20 minutes.

Curing
CLASS C GROUT should be cured for a minimum of three days with wet burlap followed by application of SUPATUFF 309 WB Water Based Concrete Sealer. failure to prevent early moisture loss and ensure long term curing, can result in plastic cracking, drying shrinkage, cracks in grout shoulders and a reduction in ultimate strentgth development. Inservice operation may begin immediately after minimum required grout strengths have been reached.

Special Considerations
Hot Weather Grouting: CLASS C GROUT should not be applied under extreme hot and windy conditions. In very hot conditions grout and water should be stored at or below 25 degrees Celsius and if required, substrate should be water cooled.

Cold Weather Grouting: The temperature of the grout and surroundings during application shoul dbe above the lower application limit of 5 degrees Celsius. Below this, precondition grout, water and substrate to raise the temperature (ideally to approximately 20 degrees Celsius) before applying the grout. Please contact your local EPIREZ office for full technical assistance and recommendation for special applications.

Clean Up

CLASS C GROUT should be removed from tools and equipment immediately after use with clean water.

Packaging

CLASS C GROUT is available in 25 kg moisture resistant, multi-ply bags.

Safety Precautions

CLASS C GROUT is non-toxic, but is alkaline in nature. Gloves should be worn. Splashes of grout to the skin or eyes should be washed off with clean water. In the event of prolonged irritation, seek medical advice. keep contents away from children.
TDG Code: Not Classified

NOTE:
The figures quoted for work time, set time, yield and strength development are not definitive. They are dependent on job site conditions and will vary accordingly. in all cases we endeavour to provide typical figures for use a guide.

QUICK SETTING WATER PLUG

EPIREZ WATERPROOF PLUG is a precision, patented instant waterproof cement composition that stops high pressure leaks.
WATERPROOF PLUG expands in the plastic state rather than shrinking. This plastic state expansion pushes it into all spaces, voids, crevices and cracks, creating maximum bonding and sealing between WATERPROOF PLUG and surrounding surfaces. WATERPROOF PLUG'S rapid setting properties provide instant bonding and plugging performance, minimising material erosion, strength loss and waste.
WATERPROOF PLUG is non-flammable, non-toxic, non-staining and does not produce any noxious fumes.
WATERPROOF PLUG is recommended for instantly stopping the flow of water particularly where severe hydrostatic pressures exist or are expected.
WATERPROOF PLUG is a high bonding material that can be applied on old or new concrete, block, brick, stone, or any other surface to which cementitious products can bond.

Typical Applications

• Tunnels	• Cable Vaults
• Manholes	• Elevator Shafts
• Power Stations	• Water Tanks

Features

• Fills and seals active leaks	• Non-shrinking
• True waterproof chemistry	• Rapid setting
• High strength	• One part product

General Properties

Shelf Life	:	12 months, unopened
Work Time	:	3 minutes
Initial Set	:	4 minutes
Shrinkage	:	Nil
Compressive Strength - 1 Day	:	20 MPa
28 Days	:	25 MPa

Application

•	Open crack or holes by cutting to a minimum depth of 25mm. For high volume leaks, increase depth to a minmum 40-50mm. A dovetail joint is preferable.
•	Leave surfaces rough and remove all contaminated and loose materials to ensure good bonding. Thoroughly wet down all surfaces.
•	Surface preparation guidelines cannot cover all site or field contingencies and it is always recommended that an on-the-spot adhesion test be performed as part of the Standard Quality Assurance audit for the project.
•	For high volume leaks, install rubber hose in the lowest section of the routed out cracks or hole.
•	Mix WATERPROOF PLUG with clean water only. For best results, condition both WATERPROOF PLUG and water to a minimum 20 degrees Celsius. Do not mix more than can be placed in 3 minutes. Add only enough water so it has a putty consstency and can be made into a ball.
•	As WATERPROOF PLUG becomes warm, force into crack or hole with maximum pressure. If necessary, use external force to hold in place until a firm set takes place.
•	For high volume leaks, first build up around the rubber hose to anchor it. Work crack from top to bottom.
•	After WATERPROOF PLUG has completely hardened and all leakage has been stopped, remove rubber hose and force plug into remaining hole with maximum pressure.
•	For deep cracks, build up WATERPROOF PLUG in layers, leaving the last 3 to 6mm for an applicaiton of EPIPATCH Polymer Modified Repair Mortar.
•	Finish off surface and render flush with a minimum 3mm coat of EPIPATCH.

Clean Up

Clean tools and equipment with water immediately after use.

Packaging

WATERPROOF PLUG is packaged in 15 kg and 3 kg weatherproof containers for interior or exterior storage.
Ordering Information: 15 kg - #991612, 3 kg - #991613

Safety Precautions

EPIREZ WATERPROOF PLUG in non-toxic, but alkaline in nature. Gloves should be worn. Splashes to the skin or eyes should be washed off with clean water. in the event of prolonged irritation, seek medical advice. keep contents away from children.
TDG Code: Not Classified

NOTE:
The figures quoted for work time and set time after mixing are not definitive. They are dependent on job site conditions and will vary accordingly. In all cases we endeavour to provide typical figures for use as a guide.