Understanding Slipform Barrier Wall Construction
The practice of constructing a slipform barrier wall in the roadway has been done for decades already. Its profiles have experienced a lot of changes to adhere to state regulations and the demands of the times have changed. The barrier can be constructed when there is already a kerb and gutter because it adds to the strong foundation. In addition, it is important that the concrete mix is consistent and being poured dry. You can gain more knowledge about barrier wall construction by reading more here.
The concrete has a low slump with a specific vibrate amount to make sure that the correct density and compaction is being achieved. While the machine is moving, the mould will slip on the vibrated concrete, which is where the term 'slipform' comes from. Any changes done in the properties of the concrete will change the kerbing process results. Hence, the slipform process should be uniform. The uniformity in the slipform barrier wall construction design, energy levels and logistics are important for the satisfactory machine performance and results of the kerb.
Keeping the Mould Stable
Slipform barrier wall moulds can be under the machine or side-mounting is done; there are machines that can do both positions. The under-machine mould has a limited height structure, but the advantage is it produces a lesser amount of footprint and it can be transported while the mould is in place.
Majority of machines used for this project are set to pave coming from the left side, but there are factory options that might allow a right-side configuration. When the work of the contractor requires that the barrier inside or outside the roadway should go with the traffic flow, side-mounting is an advantage.
Slipform barrier wall construction is great in terms of restructuring because there is no need for over excavating the box width to make room for the machine. The process lets the machine stay up on the roadway, and the mould is placed down on the old kerb. This lowers the excavation cost thousands of dollars. Aside from that, the design has a longer lifespan, reduces cost in construction replacement, has better sub-grade bonding and asphalt surfaces and has improved curing and less shrinkage. It is also very versatile and can be formed in any shape or height that is required.
This is basic information that you need to know about slipform barrier wall construction.