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The exponential growth in the real estate development comprises of the high-rise buildings which have observed a long gestation period primarily due to the current conventional construction system which is extremely time consuming and costly. These continuous delays resulted in cost escalation which was borne by developers who ultimately had little choice than to escalate the price of property. This in turn resulted in these properties being unattainable to many. Coupled with escalating costs and acute shortage of skilled man power led the developers to look at alternate technologies apart from time-tested/conventional methods.
Aluminium wall forms were the ones which suited this particular change. Ended up being practical and also attractive for the general development condition, this innovation is currently utilized in nations like Europe, Gulf, and Asia including India. Aluminium wall form work, commonly known as MIVAN Technology is an astounding replacement to the conventional technology with marked advantages of quality, time & requirement of skilled resources, as the structure is generally designed as load-bearing walls and slabs & the whole assembly is shuttered and poured monolithically giving it a exceptionally particular favorable position in terms of structural stability, both on lateral movements, seismic forces and effect of wind forces on high rise building.
The fundamental component of the MIVAN formwork is the board, or, in other words aluminum rail segment, welded to an aluminum sheet.This produces a lightweight panel with an excellent stiffness to weight ratio, yielding minimal deflection under concrete loading. They can be manufactured in any size and shape to suit the requirements of specific projects. Once assembled, they are subjected to a trial erection in order to eliminate any dimensional or on site problems.
Some of the visible advantages of the MIVAN technology are -
Speed: Reduces the TAT (Turn around Time) by almost half as compared to the conventional technique and help achieve a slab to slab cycle of 7 to 10 days.
Demands less labour activities: With its checklists implemented eliminates the labour intensive activities like masonry and rendering.
Skilled resources: MIVAN technology reduces the skilled resources deployed for the project.
Less Maintenance: Fundamentally with no construction joints and with free flow concrete used eliminates/greatly reduces the chances of seepage resulting in negligible maintenance.
Higher Carpet Area : It gives the scope to take out more carpet area in comparison to traditional construction techniques.
Earthquake Resistant: More earthquake resistant structure and safer in case of a strong earthquake. This is because structures built using Mivan is a monolithic concrete structure which acts as a whole single strong unit.
Demerits Of The MIVAN Technology-
Expensive – Aluminium formworks are much expensive than the conventional formworks.
Visible Finishing Lines – Due to small-sized components used , the finished structure could have several finishing lines visible on the concrete surfaces.
Less Scope Of Alterations – Alterations or modifications are not possible as all the members are cast in RCC.
Demands Uniform Planning – This technology is comparatively expensive, to be cost-effective uniform planning as well as elevations are needed.
Can Have Contraction Cracks – Shrinkage could result in cracks on walls and slabs. This can be prevented either by reducing the heat hydration by using fly ash or by using control strips on the structure.
Comparison of Aluminium Form Construction Technique over Conventional Forms:
More seismic resistance: - The box type construction provides more seismic resistance to the structure.
Increased durability: - The durability of a complete concrete structure is more than conventional brick bat masonry.
Lesser number of joints thereby reducing the leakages and enhancing the durability.
Higher carpet area- is increased due to shear walls , the walls are thin thus increasing area.
Integral and smooth finishing of wall and slab- Smooth finish of aluminium can be seen vividly on walls.
Uniform quality of construction
Negligible maintenance - Strong built up of concrete needs no maintenance.
Faster completion - Unsurpassed construction speed can be achieved due to light weight of aluminium form.
Lesser manual labour as the electric and plumbing work is also carried out at the casting stage itself.
As we discuss these advancements in the real estate market there still lies a gap in the need and utilization of this technology. Reasons for this existing gap are the requirement of large projects consisting of repetitive volumes in order to make this technology cost-savvy. Likewise in cases where the cost supersedes the time, in terms of priority this technology tends to become redundant.
In order to ensure that there is a conscious usuage of aluminium form construction from conventional methods , there needs to be a greater awareness , application and acceptance of these technologies .
For more understanding about the concept , watch video : bit.ly/2NRJ77w
Story Source: gosmartbricks