Larsen MBM 534 Manhole Bedding Mortar | HAPAS Approved Highway Mortar
Larsen MBM 534 Manhole Bedding Mortar | HAPAS Approved Highway Mortar
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Larsen Highways MBM 534 is a HAPAS-approved, two-component high-performance bedding mortar specifically developed for the installation, raising and reinstatement of highway ironwork and access covers. Combining the performance benefits of resin-based mortars with the ease of use associated with cementitious systems, MBM 534 provides exceptional strength development and durability in demanding highway environments.
Designed for use with ironwork installations up to and including Installation Group 4 in accordance with BS EN 124, MBM 534 is ideal for projects requiring rapid return to service and minimal disruption to traffic flow. Its advanced formulation achieves high early compressive and tensile strengths, allowing installations to be opened to traffic after just 60 minutes.
MBM 534 performs exceptionally well in challenging weather conditions, including wet environments, making it a reliable solution for highway maintenance, utility reinstatements and infrastructure projects throughout the year. The non-shrink formulation ensures long-term stability and support beneath ironwork, while frost resistance provides enhanced durability in exposed locations.
Suitable for use by highways contractors, utilities companies and civil engineering professionals, Larsen MBM 534 delivers dependable performance where speed, strength and compliance are critical.
Key Features
- HAPAS approved bedding mortar
- Two-component high-performance system
- Open to traffic in just 60 minutes
- Exceptional early strength development
- Suitable for Installation Group 4 ironwork
- Combines resin mortar performance with cement mortar usability
- Non-shrink formulation
- Frost resistant
- Excellent wet weather performance
- Suitable for highway and utility applications
Specifications
Specifications
Product Information
- Product Name: Larsen MBM 534 Manhole Bedding Mortar
- Brand: Larsen Highways
- Product Type: Two-component bedding mortar
- Application: Highway ironwork installation and reinstatement
Compliance
- HAPAS Approved
- Complies with MCHW Volume 1 Series 500 Clause 507 Chambers, 44
- Complies with MCHW Volume 1 Series 500 Clause 507 Chambers, 24 (i), (iii) and (iv)
- Suitable for installations up to and including Installation Group 4 of BS EN 124
Suitable Applications
- Manhole cover installations
- Access cover frame bedding
- Highway ironwork reinstatement
- Raising existing ironwork
- Utility access covers
- Road maintenance projects
- Civil engineering works
- Infrastructure repair projects
Performance Characteristics
- Open to traffic after 60 minutes
- 2-hour compressive strength greater than 20 MPa
- 3-hour compressive strength greater than 30 MPa
- 3-hour tensile strength greater than 5 MPa
- Non-shrink performance
- Frost resistant
- Excellent wet weather application properties
Bed Depth
- Suitable for bed depths from 10mm to 50mm in a single application
Coverage
- One 17.7kg bag covers approximately 1m² at 10mm thickness
Packaging
- 17.7kg bag
- 2.3 litre liquid bottle
Typical Uses
- Highway manhole cover installations
- Utility frame reinstatement
- Drainage ironwork bedding
- Access chamber construction
- Emergency highway repairs
- Utility maintenance projects
- Civil engineering infrastructure works
Benefits
- Minimises road closure times
- Allows rapid return to service
- Delivers exceptional early strength
- Performs reliably in adverse weather conditions
- Provides long-term support and stability
- Meets demanding highway industry standards
- Suitable for heavily trafficked locations
Storage
- Store in original unopened packaging
- Keep in dry conditions
- Protect from moisture and frost
- Use according to manufacturer's installation guidelines and shelf-life recommendations.
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