Category CONSTRUCTION TECHNIQUE

HOW CONSTRUCTION MATERIAL PLAYS AN IMPORTANT ROLE IN THE QUALITY AND SAFETY OF ANY INFRASTRUCTURE PROJECT

HOW CONSTRUCTION MATERIAL PLAYS AN IMPORTANT ROLE IN THE QUALITY AND SAFETY OF ANY INFRASTRUCTURE PROJECT

Over the years, real estate has become a topic of varied opinions. The rise of this industry has seen so many challenges and witnessed many changes; however, thus, outcome attained by it has been varied too.
People today are not afraid to  invest in real estate and often go to great heights to make sure they receive value for their buck and more importantly get a place that makes them and their families comfortable.

However, even before the finished apartment comes into being, the initial draft or blueprint is something that key focus is laid on.

This also comprises the construction materials, the raw material for interiors, planning and several other important decisions that need to be discussed in this time zone. One of the major aspects here is the construction and building materials.

Today, we have brands and suppliers in abundance who supply some of the best building construction materials and a lot of builders also go one step ahead to even partner with suppliers who supply quality products.

So why the emphasis on ensuring you only have premium quality construction material as a part of your building construction process?

Well because, the final reflection of your construction will be proof of what you have used right from the beginning and its life and sustenance of the project as well, will be wholly focused on it.Here is how good construction materials will play an important role in the quality and safety of an infrastructure project:

1. Cost-Saving in the Long Run:

If you put an extra buck or two in procuring the best quality construction and building materials, this will in a way save a ton of money later on.If you skimp, you will be shelling out small amounts to fix a small wear and tear and in the end, this will result in a sum much larger than what you would have to pay initially for good quality material.This, make sure for this ‘skeleton’ of your construction, you invest only in the best quality goods you can acquire.

2. No Complaints and Maintaining Goodwill:

It is important to realize that the construction you are creating today will be a home for someone tomorrow.
Putting in your best while constructing, it will ensure their home tomorrow is safeguarded and secure and for that, they will only have the builder to thank! This in a way will add to your goodwill and lead to happy and content customers.

 

3. Recommendations will Improve Business like No Other Marketing Strategy:

Following the goodwill, people will speak to their acquaintances, friends and colleagues and in a way market your service for free! This will do wonders for your business in the long run as real testimonials from someone you know means more than any amounts of marketing strategies you use.

4. Saves Time:

In the future, fixing small glitches in the property will mean more expenses and effort, and of course will create a hassle for the residents too. All these concerns can be taken care of if you simply invest in quality construction materials right from the start.

5. Assurance during Natural Calamities or Crisis:

Although the risk associated with natural calamities cannot be measured, you can definitely take measures to minimize damage in case of one!

Some good quality material will be able to withstand damage to a certain extent and of course, will be able to repulse way better than a building whose base construction is in itself poor.

MODERN BUILDING CONSTRUCTION TECHNIQUES

MODERN BUILDING CONSTRUCTION TECHNIQUES

Building construction methods have experienced significant facelift in recent times with innovative technologies being harnessed optimally for improving the qualitative index of buildings.

This has spelled considerable advantages for end users like us who can remain immune from recurrent expenses on repairs and other incidental building-related jobs. Construction lead time has also been reduced and building costs have been rationalized.

This post takes you through 8 techniques that have given the much-needed fillip to the most primitive human pursuit that still exists i.e. construction.

1)  3D Volumetric Construction

Using this modular construction technology, 3D units are produced in controlled factory settings using needful construction and building materials.

Finished units are transported to site in various modules, basic structural blocks or final touched up units with all amenities installed, for assembly. Blocks can be erected rapidly at site and properties of concrete like fire retardant, sound resistivity, thermal mass etc. are retained.

2) Precast Flat Panel Modules

These are primarily wall and floor modules which are manufactured away from the actual site and then transported to site for erection. Load bearing components like decorative cladding and insulation panels can also be produced.
Also called cross-wall construction, the technology has gained momentum due to seamless adherence to specifications and ease as well as swiftness of construction.

3) Tunnel Formwork System

With this tunnel technique, construction is paced up for cellular structures of repetitive patterns through the building of monolithic walls or units in a single operation per day.

Expeditious work is achieved by deploying formwork and readily mixed concrete with the convenience and agility of factory conditions. Formworks in tunnel form are stacked and used at the site with cranes.


4) Flat Slabbing Technology

This technique utilizes the simplicity of contemporary formwork for quickly building flat slabs to facilitate easy and swift placing of horizontal amenities and for partitioning.
Maximization of pre-fabricated services occurs as services can be carried out in an uninterrupted manner in zones underneath the floor slabs.Every top-notch building construction company .  is using the same as internal layouts can be conveniently modified for accommodating alterations at a later date. Further, reinforcement needed is lesser which cuts down labour costs significantly.

5) Pre-cast Foundation Technique

Foundations can be built swiftly with precast concrete units which are produced in a factory and are high on quality quotient. Strength is imparted to foundation related building construction materials through interconnected concrete piles.

This technique allows construction work to progress even in inclement weather and minimizes excavation activity.

6) Hybrid Concrete Building Technique

This technique expedites construction turnaround time by blending the advantages of concrete pre-casting with the in-situ building. Quality improves, whereas the cost of construction plummets.

Hybrid concrete structures are easy to build, competitive in nature and perform consistently.

7) Thin Joint Masonry Technique

Utilization of this technique leads to the reduction of the quantum of mortar applied by slashing it depth from 10mm to lesser than 3mm. Consequently, mortar can be laid swiftly with enhanced productivity on the longer wall panels.

With large sized concrete blocks, higher construction efficiency along with significant cost reduction can be achieved. Within a single day, the number of mortar courses laid is higher as curing of mortar takes place quickly without compromising on bonding strength resulting in the elimination of floating problem.

8) Insulating Concrete Formwork (ICF) Technique

ICF technique employs polystyrene blocks that feature twin walls and can be rapidly put together for creating building wall formwork. The formwork is then pumped in with high quality, ready mixed, factory-made concrete.
The building construction process becomes fool-proof and the resultant structure has a high level of sound and thermal insulation.

Building construction methods have matured significantly with advancement in technologies underlying them.

What is Rebaring ? Types of Steel Reinforcement Bars , types of rebaring , Types of Deformed Steel Bars

What is Rebaring ?

Steel reinforcement bars or rebars are used to improve the tensile strength of the concrete, since concrete is very weak in tension, but is strong in compression. Steel is only used as rebar because elongation of steel due to high temperatures (thermal expansion coefficient) nearly equals to that of concrete.

Rebaring is the method of insertion of the Steel bars when,
there is change in design or there is some extension of the present structure.When Steel rod as per drawing has not been installed.
Rebaring technique is reinforced concrete construction is a method for proper fabrication and placement of reinforcement bar as per the design and drawing of RCC work.
2)  Need of Rebaring
The rebars are mainly provided at the junction where the formwork of structural element is closed as well as at the point where a new structural element needs to be bond with the former one.Change in the design and sudden extension in structure.Steel bars are not placed according to as per design.
Various conditions that rebaring process and equipment are changed.rebaring technique in reinforced concrete construction.Rebaring technique on a Pre-casted structure.
3) Process of rebaring in reinforced concrete construction.

The three main operations carried out in rebaring for reinforced concrete construction bars are cutting, bending, tying.
The diameter of reinforcement bars used reinforced concrete works mainly  ranges from 6 to 42 mm these reinforcement bars comes from the Steel mills in specified lengths.
So during installation the reinforcement bars must be cut into required size.

The design engineer show the details about the bar bending and related work based on which the workers proceed the work.

4) Equipments used for rebaring techniques.

The equipments that is used for Rebaring operation is developed with the time as the size of Bar is increases. large size of bars are difficult to be handled by hand operation.
The uses of chisel and hammer was an early effect is used for bar bending.

Grades of Rebar in Different Codes

Table 1: Grades of Rebar in Different Codes

American Standard (ASTM A 615) Euro Standard(DIN 488) British Standard BS4449: 1997 Indian Standard (IS: 1786)
Grade 75 (520) BST 500 S GR 460 A Grade Fe – 415, Fe – 500, Fe – 500D
Grade 80 (550) BST 500 M GR 460 B Grade Fe – 550

Types of Steel Reinforcement Bars

Major types of steel bars used in the construction are as follows,

1. Mild Steel Bar

The surface of the mild steel bars are plain and round in shape. They are available in various sizes of 6 mm to 50 mm. They are used in concrete for special purposes, such as dowels at expansion joints, where bars must slide in a metal or paper sleeve, for contraction joints in roads and runways, and for column spirals. They are easy to cut and bend without damage.

For structural buildings like bridges and other heavy structures, mild steel bar is not recommended due to no great bonding between concrete and steel, slippage and strength.

Grades in mild steel bars

1. Mild Steel Bars

  • Mild steel bars grade-I designated as Fe 410-S or Grade 60.
  • Mild steel bars grade-II designated as Fe-410-o or Grade 40.

2. Medium Tensile Steel Bars designated as Fe- 540-w-ht or Grade 75.

Physical Requirement of Mild Steel Bars

Table 2:Physical Requirement of Mild Steel Bars

Types of Nominal size of bar Ultimate Tensile Stress in N/mm2 Yield Stress N/mm2 Elongation Percentage min
Mild Steel Grade I or Grade 60
For Bars upto 20mm 410 250 23
For Bars above 20mm upto 50mm 410 240 23
Mild Steel Grade II or Grade 40
For Bars upto 20mm 370 225 23
For Bars above 20mm upto 50mm 370 215 23
Medium Tensile Steel Grade -75
For Bars upto 16mm 540 350 20
For Bars above 16mm upto 32mm 540 340 20
For Bars above 32mm upto 50mm 510 330 20

2. Deformed Steel Bar