Product Data Sheet Show all documents
Parex Highway C2

Parex Highway C2

Parex Highway C2 is a pre-mixed, 1-part, cementitious, non-shrink, fast setting bedding mortar

Parex Highway C2 is a pre-mixed, one-part, cement based, non-shrink bedding mortar suitable for the support of road ironwork and highway furniture, and small-scale repairs. The mixed mortar, when placed, will harden in approximately 10 minutes. Compressive strength will reach 20 N/mm2 in only 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 iron and steel units. The mortar can be placed in sections of 15 mm to 75 mm in thickness. Greater thicknesses can be built up in layers.
Alternatively, thicker beds may be formed by the addition of up to 30 % of the Parex Highway C2 weight of clean dry pea shingle. No additional mixing water is required. After placement, no special curing is required in moderate ambient conditions.

  • Easy to use - just add water and mix.
  • Supplied in convenient 25 kg bags.
  • Application range: 15 to 75 mm per layer.
  • Non-shrink.
  • Consistency: stiff workable mortar.
  • High bond strength.
  • Does not require a primer. 
  • Fast setting.
  • Ready to receive traffic after only 120 minutes.
  • Compressive strength ~70 N/mm2 at 28 days.
  • Rapid strength gain, even at low temperatures.
  • Resistant to freeze / thaw action.
  • Proven durability and performance.
  • Each 25 kg bag of Parex Highway C2 will enable a manhole frame 600 mm x 600 mm to be raised approximately 25 mm.
  • The volume yield of each 25 kg bag of Parex Highway C2 is approximately 12.75 litres.
Product Data Sheet Show all documents

Usage

  • Re-bedding of raised manhole frames.
  • Bedding of frames in new roads.
  • Support of, and securing, street furniture.
  • Fast small-scale repairs. 
  • Quick placement of paving (i.e. pavers, slabs, blocks, granite setts, etc.).
  • Speedy installation of kerbs.
 

Advantages

  • Easy to use - just add water and mix.
  • Supplied in convenient 25 kg bags.
  • Application range: 15 to 75 mm per layer.
  • Non-shrink.
  • Consistency: stiff workable mortar.
  • High bond strength.
  • Does not require a primer. 
  • Fast setting.
  • Ready to receive traffic after only 120 minutes.
  • Compressive strength ~70 N/mm2 at 28 days.
  • Rapid strength gain, even at low temperatures.
  • Resistant to freeze / thaw action.
  • Proven durability and performance.
  • Each 25 kg bag of Parex Highway C2 will enable a manhole frame 600 mm x 600 mm to be raised approximately 25 mm.
  • The volume yield of each 25 kg bag of Parex Highway C2 is approximately 12.75 litres.

Packaging

25 kg bags

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

Parex Highway C2 has been tested in accordance with appropriate parts of BS EN 12390.

The product complied with the requirements of the Design Manual for Roads and Bridges Volume 7 Pavement Design and Maintenance Section 2 Pavement Design and Construction Part 4 HD 27/04 - Pavement Construction Methods (superseded by Design Manual for Roads and Bridges CD 226 - Design for new pavement construction).

Mortars for bedding ironwork, such as manhole cover frames during repairs, may be trafficked when the strength is expected to be >20 N/mm². For rapid construction, this strength should be achieved within 2 hours. Parex Highway C2 will achieve the required strength of 20 N/mm2 within 2 hours at a temperature of +20 °C.

 
Product Information

Composition

Cement based

Shelf life

6 months

Storage conditions

Store in unopened packaging at a temperature of +5 °C to +35 °C.

Storage at higher temperatures and / or humidity may reduce the shelf life.

Density

~2200 kg/m3
Technical Information

Compressive strength

2 Hours

24 Hours

7 Days 

28 Days

~21 N/mm2

~32 N/mm2

~49 N/mm2

~70 N/mm2

Mechanical strength profile (+20 °C / 90 % RH). Water addition: 2.75 litres per 25 kg of Parex Highway C2. 

Coefficient of thermal expansion

11 x 10-6 / °C

Reaction to fire

Non-flammable (EuroClass A1)

Application

Application Information

Mixing ratio

2.5 to 3.0 litres of water for 25 kg powder

Pot Life

Approximately 10 minutes at +20°C
Consumption

Yield

Each 25 kg bag of Parex Highway C2 will enable a manhole frame 600 x 600 mm to be raised approximately 25 mm.

The volume yield of each 25 kg bag of Parex Highway C2 is approximately 12.75 litres.
Application steps

SUBSTRATE PREPARATION

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 (ideally saturated surface dry) taking care to remove any standing water before placing the Parex Highway C2 mortar.

MIXING

To achieve the most consistent mortar mix, mechanical mixing is recommended. Thorough hand mixing is suitable but care should be taken to ensure that the mix is fully wetted out. 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 25 kg bag of Parex Highway C2 requires 2.5 to 3.0 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 re-work the mix.


The mortar should be placed within approximately 10 minutes of mixing. The working time may be extended in cold ambient conditions and may be slightly shortened in hot ambient conditions. For cold weather working, warm mixing water at up to +30 °C may be used.

APPLICATION

Set suitable levelling shims onto the working surface ready to receive the frame or unit. 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 15 mm and 75 mm.
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, within approximately 20 minutes, depending on the ambient conditions.

CURING TREATMENT

No special curing is required at temperatures between +5 °C and +35 °C. For placing at temperatures outside this range, contact Sika® Technical Services.

CLEANING OF EQUIPMENT

Clean all tools and application equipment with water immediately after use. Hardened material can only be mechanically removed.

 

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