Delhi Metro Rail Corporation, phase III

Delhi metro is the world’s thirteen longest metro system. Currently, the project in its third phase which consistsof 160 km line with eleven route extensions.

One of the major challenges in this phase was to construct an elevated viaduct consisting of 11 precast concrete segments of Grade M50 on a suspended girder in order to reduce the disturbance to trafficand enabling a faster construction process. It was highly important to guarantee that the bonding material between these segments has an exceptional bond strength,fast curing time,excellent water tightness properties and grey color to be similar to concrete color.

In order to fulfill all these requirements, DCP has supplied Quickmast SBA which is a two-component, high viscous and solvent free epoxy-based adhesive especially designed for bonding segmental concrete bridges.

QuickmastSBA is available in three grades according to the application temperature which are:

• Quickmast SBA 1: for temperatures ranges from 5°C to 20°C.
• Quickmast SBA 2: for temperatures ranges from 15°C to 30°C.
• Quickmast SBA 3: for temperatures ranges from 25°C to 40°C.

All these grades are characterized with several advantages that exceed the client expectations including but not limited to:

• Extremely high compressive strength.
• Suitable curing time.
• Uniform grey colour.