Scaffolding is a temporary structure used as a platform by
workmen to carry materials and aid in the construction, maintenance, and repair
of buildings, bridges, or any other man-made structures. They are generally
used in construction works to get access to heights and areas in a structure
that would be otherwise very dangerous or hard to get access to. Unsafe
scaffolding may result in a serious injury or even death in some cases. The
purpose of scaffolding is therefore to reduce the potential risk of life and
ease of access. It is generally made up of timber or steel. It should be stable
and strong enough to support the load of the workers and construction material.
Aside from construction works they are sometimes also used in grandstand
seating, concert stages, exhibition stands, ski ramps, and art projects, etc.
mason scaffolds
The five main types of scaffolding used around the world are
prefabricated modular system scaffold components, tube and coupler components,
H-frame/façade modular system scaffolds, timber scaffolds, and bamboo
scaffolds. These are made up of several components listed below;
➢ A base jack (load-bearing base for the scaffold)
➢ The standard (vertical component with connector joints)
➢ The ledger (a horizontal brace)
➢ Coupler (used to join components together)
➢ Brackets (used to extend the width of the working
platform)
➢ Scaffold tie (used to tie in the scaffold to structures)
➢ Batten (decking component used to make the working
platform)
➢ Transom (horizontal cross-section load-bearing component
to hold the batten)
Cold weather brings a lot of challenges in construction
work. The concrete does not set up as well as it does in warm weather. It also
results in the inefficiency of the workers. Furthermore, power tools are also
prone to damage in cold and damp environments. It causes even more delays in
work. The Masonry Standards Joint Committee (MSJC) Code and Specification
Quality Assurance section and International Building Code 2003 emphasize that
once the temperature drops to 40, cold weather plans must be immediately
implemented at work sites.
Earlier, workers used to build bonfires under the
scaffolding or cement mixers to keep themselves warm. But, modern technology
has enabled them to thaw the ground for excavation of footing. Different
heating methods are accessible to ensure the proper setting of concrete.
Concrete additives are also available to pour concrete in below-freezing
temperatures. Organizations develop plans to ensure a comfortable and safer
environment for workers. They make sure that the construction tools and
equipment of the workers are performing at maximum efficiency even when the
weather doesn’t co-operate?
The Winter protection enclosure system has become a priority
when the work areas need to be shielded from snow and low temperatures. Most of
the exterior scaffolding jobs require work done within a specified time for
many reasons and restrictions. Therefore, work needs to be done to reduce
downtime and prevent loss. There are various types of winter enclosures that
can save a lot of time and money while providing a warm environment for the
workers to work in. A few examples of such winter enclosures are;
➢ Concrete curing blankets – A sudden cold spell can
downside or delay a planned concrete pour. It can deny moisture to the slab to
cure properly. Cold, dry winter can form cracks in a new cast slab due to
deficiency of moisture and the right temperature. Therefore, concrete curing
blankets are a must-have in areas affected by a sudden drop in temperatures.
They help in maintaining the temperature-water content needed by the concrete
after placement for a longer period of time. It helps to achieve proper
strength and crack resistance. Curing blankets not only prevent the moisture in
concrete from drying that can cause fracturing in the future, but also help in
speeding up the curing process by elevating the slab’s surface and internal
temperature. Curing blanket raises the concrete’s temperature from 40 to 70 and
cut curing time in half. It saves both time and money in the process.
➢ Flame retardant tarps – Cold and moisture can cause heavy
damage to expensive construction tools. Blades of power tools may rust or
wiring and cords might short. Even the most rugged equipment may fall prey to
the ruthless cold and wet conditions overtime. The efficiency of workers is
also get decreased which affects productivity. The solution to all these
problems can be flame retardant tarps. They can shield tools and workers from
cold winds, rain and contain ambient heat within the worksite. A quality tarp
system will keep the elements at bay allowing the workers to work with full
efficiency. Flame retardant tarps allow construction workers and equipment to
operate in a warm enclosure. It provides comfortable conditions for work by
trapping the warm air in and keeping the cold air out. This technique can
maximize work time while reducing heating costs.
➢ Reinforced poly sheeting – These are strong,
pocket-friendly reinforced poly sheets that protect the workers as well as
passers-by from the weather, debris, dust, and fumes. The non-fire-retardant
versions of these are somewhat translucent and allow ambient illumination to
pass through, saving up on energy costs on the site. Their high tensile
strengths and ease of handling make them ideal for sealing of scaffolding or
debris enclosures to protect any material from falling outside.
➢ Electrically heated pads – Everything moves slowly under
the influence of cold. The ground freezes up and defies excavation works,
lubricants lose their viscosity, construction tools strain, while the workers
spend most of the time trying to stay warm. The electrically powered heating
pad is a viable solution to all these problems. They are easy-to-use sources of
portable, direct heat. They can be used for;
➢ Melting snow and frost
➢ Thaw the ground for trenching operations
➢ Warm fuel lines and cylinders safely
➢ Keep palletized materials set and ready to use.
Electrically heated pads are suitable to use in the field,
on staged construction equipment, or in unheated warehouses as they consume
lesser fuel and deliver more optimized heat than the other options.