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Fosroc Conbextra TS is a high-flow, non-shrink, thick-section, aggregate filled cementitious grout conforming to the requirements of BS EN 1504-3 Class R4.
Suitable for use on concrete for free flow grouting for gap thicknesses from 75mm to 500mm. For smaller gaps please see Fosroc Conbextra HF.
Recommended applications include large stanchion baseplates where a large gap is present, joints between pre-cast concrete panels and filling box sections.
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Features & Benefits
- Supplied as a ready to use dry powder
- The addition of a controlled amount of clean water produces a free-flowing grout
- Low water requirement ensures high early strength and long-term durability
- Conbextra TS is a blend of Portland cements, graded fillers, selected aggregates and chemical additives
- Filler grading produces a highly flowable grout which will not segregate or bleed and reduces the exothermic heat generation and risk of thermal cracking common with gap thicknesses in excess of 100mm
- Non-shrink
- High strength
- Chloride free
- Can be pumped or poured
- Suitable for thick sections
- Yield: Approximate yield per 25 kg bag for different consistencies is 12L
- Fire Classification: Class A1 Non-Combustible
- Conbextra TS is non-flammable
- Please refer to the Product Data Sheet for full details of:
- Properties
- Specification Clause
- Standard Compliance
- Mixing
- Application Instructions
- Curing
- Estimating
- Cleaning
- Storage
- Health and Safety
Application Notes
- For a minimum of 2 hours prior to grouting, the area of cleaned foundation should be flooded with fresh water
- Immediately before grouting takes place, any free water should be removed
- Particular care should be taken to blow out all bolt holes and pockets
- Where water soaking is impossible contact our Technical Department on 0113 2455450 (option 2) or send a message to [email protected] for advice
- The formwork should be constructed to be leakproof as Conbextra TS is a free flowing grout
- This can be achieved by using foam rubber strip beneath the constructed formwork and between joints
- For mixing quantities up to 50 kg, a 1150 watt, 280 to 640 rpm, 110 volt drill, fitted with an MR3 Mixing Paddle is suitable
- For best results a mechanically powered grout mixer should be used. Larger quantities will require a high shear vane mixer. Do not use a colloidal impeller mixer
- Place the grout within 20 minutes of mixing to gain the full benefit of the expansion process
- Conbextra TS can be placed in thicknesses 75 to 500mm in a single pour
- For thinner sections use Conbextra HF grout
Please see the Product Data Sheet for detailed information.
Limitations
Low Temperature Working:
- When the air or contact surface temperatures are 5°C or below on a falling thermometer, warm water (30°C to 40°C) is recommended to accelerate strength development
- Substrates should be free from ice
- For ambient temperatures below 10°C the grout consistency should be flowable and the formwork should be maintained in place for at least 36 hours
- Normal precautions for winter working with cementitious materials should then be adopted, specifically protecting the grout from freezing in the first 48 hours after placing
High Temperature Working:
- At ambient temperatures above 35°C the mixed grout should be stored in the shade
- Cool water (below 20°C) should be used for mixing the grout
IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions and should be applied only by an individual with the necessary expertise and experience. We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.
Data sheet
- Manufacturer
- Fosroc
- For Use By
- Professional Use
- For Use On
- Concrete
- Single, Two or Three Pack
- Single
- Pack Size
- 25kg
- Application
- Pour
Pump - Shelf Life (from date of manufacture)
- 12 months in sealed bags. If stored in high temperature and high humidity locations the shelf life may be reduced to less than 6 months.
- Touch Dry
- Initial set: 6 hours
- UN Number
- N/A
- Base Type
- Water-Based
- Suitable For Use On
- Concrete
- Application Method
- Pump
- Application Method
- Pour
- Manufacturer
- Fosroc
- Usages
- Precision Grouts Cementitious
- Product Usage Type
- Grout
- Product Range
- Conbextra
- Categorised As
- Repairs > Low Temperature Grouts
- Seasonal
- Cold Weather
Questions
Question about the product
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IMPORTANT SHIPPING & DELIVERY INFORMATION
Fosroc Conbextra TS is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT
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