TECHNICAL DATA Revision Date 01/2007
Eprobed is a pre-mixed Portland cement based mortar suitable for the support of highway furniture. The mixed mortar, when placed, will harden in approximately 10 minutes. The compressive strength gain will reach 20N/mm2 within 2 hours allowing early opening of roads to vehicular traffic. The self contained product only needs to be mixed with water on site and the rapid setting assists the re-bedding of manhole frames and the setting of new frame systems. The product is chloride free and can be safely used with cast and steel units. The mortar can be placed in sections of 10mm to 75mm in thickness and greater thicknesses can be built up in layers. After placement no special curing is required in moderate ambient conditions.
Re-bedding of raised manhole frames
Bedding of frames in new roads
Support of road furniture
Typical Mortar Properties @ 20°C
Water addition: 3.00 litres per 25kg bag of Eprobed
|2 Hours||4 Hours||1 Day||7 Days||28 Day|
|20 N/mm2||25 N/mm2||28 N/mm2||35 N/mm2||47 N/mm2|
Variations in water content for particular applications may alter mortar consistency and compressive strength achieved.
Coefficient of Thermal Expansion 11 x 10″6/°C
Bedding and levelling shall be carried out using Eprobed as manufactured by Tecroc Products Ltd. The product must be stored, handled and placed strictly in accordance with the manufacturer’s instructions.
Tecroc Products Ltd is a firm of Assessed Capability.The Company’s quality system conforms to BS EN ISO 9001:2000 and is assessed by SGS Ltd Systems and Services Certification.
Eprobed has been tested in accordance with appropriate parts of BS 1881 and conforms to DTp: HD 27/94 Design Manual for Roads and Bridges Vol 7 Sec2 3.11.
Laitance and all loose material including dust, oil and grease should be removed in order to produce a sound substrate. The work area should be pre-wetted taking care to remove any standing water before placing the Eprobed mortar.
To achieve the most consistent mortar mix, mechanical mixing is recommended. Hand mixing is suitable but care should be taken to ensure that the mix is fully wetted out without the use of excess water. Mechanical mixing may be carried out in a suitable vessel using a slow speed high torque drill and Mortar Stirrer. Hand mixing may be carried out using a clean spot board or wheelbarrow.
Each 25kg bag of Eprobed requires 3.0 to 3.5 litres of water to give a mortar consistency. Excess water should not be added. Once setting of the mortar has commenced, further mixing should not be used to rework the mix.
The mortar should be placed within approximately 10 minutes of mixing. The working time may be extended in cold ambient conditions and maybe slightly shortened in hot ambient conditions.
Place the mixed mortar onto the prepared surface and lower the frame or unit onto the mortar and knock down onto the pre-set shims to line and level. The bed thickness applied in a single application should be between 10mm to75mm. thicker support beds can be achieved by applying further material as soon as the lower bed has hardened sufficiently not to distort under the additional work.
The placed mortar will have hardened sufficiently to carry out further work, such as haunching, up to 60 minutes depending on the surrounding ambient conditions.
No special curing is required at temperatures between 5°C and 35°C. For placing at temperatures outside this range contact the Technical Service Department.
Precautions: Health and Safety
Eprobed is alkaline when mixed with water and should not come into contact with skin or eyes. Avoid inhalation of dust during mixing and wear safety glasses, dust mask and gloves. If skin contact occurs wash thoroughly with clean water. Should eye contact occur rinse immediately with plenty of clean water and seek medical advice.
Full health and safety details are given in Product Safety Data Sheet.
Fire: Eprobed is non-flammable
Each 25kg bag of Eprobed will enable a manhole frame 600mm x 600mm to be raised approximately 25mm. The volume yield of each 25kg bag of Eprobed is approximately 13 litres.
STORAGE AND SHELF LIFE
Eprobed will have a shelf life of 6 months when kept in dry conditions at a temperature of 5°C to 45°C. Storage at higher temperatures and high humidity may reduce the shelf life.
PACKAGING: Eprobed is supplied in 25kg valvesack bags.
Summer: Product Code DH31
Winters: Product Code DH30