Precast Technology for Low Cost Housing

Er. P Surya Prakash, President – Association of Consulting Civil Engineers (India) President – PSI (Pre Engineered Structures Society of India), M.D - SatyaVani Projects & Consultants Pvt. Ltd., Hyderabad

"Huge and large Compact Dwelling Units Scattered & Spread over Thousands of sites with Speed, Efficiency High Quality and Low Price" is achieved using innovatively crafted Taylor made house components factory produced transported to site, lifted to position for assembly into decent dwelling units.

This paper aims at how the Precast Concrete Building Technology can be efficiently and effectively used on various Low cast Mass Housing Projects being planned by the present Govt Policy "House for all by 2020.

With an annual growth rate trend of 2.7%, it is estimated that the India's population will be standing at about 1200 million marks by the end of 2014. Sizable of this population is below the poverty line and lack basic human needs. They do not have proper housing accommodation. Many live in slums and some have shared accommodation. The housing is a basic need and like any basic human need will be constantly in demand. The gap between available housing stock and that required is ever increasing. The potential for housing in this country is huge. NHB estimates that the housing shortage at the beginning of the 12th Plan is 18.90mn units, bulk of which, say 18M units, are in the EWS and LGH sectors.

There are other estimates, which suggest that it is at a much higher level. Even going by the conservative estimate taken by the NHB, the requirements in the area of housing are enormous. This really means that a lot of large investments, prudent planning and suitable adaptable technology are required for the low cost all inclusive habitable house constructions, with great speed in the coming years. The present government has a pious policy planning "House for all by 2020", which desiderates construction of nearly 20mn units in a span of 5years at 4 to 5mn dwelling units an year. This calls in a pragmatic approach, credible efforts, meticulous planning and monitoring on the part all the concerned and a resolute will to go ahead with the realistic plan of action. The government has to identify suitable sites in the needed areas, and duly notify, configure and freeze the lay out plans with drawings of decent dwelling units with their arrangement as individual or Two/Multi storeyed, based on the demand and availability of space and the number of family units to be constructed for allotment. Each dwelling unit should be compact with a toilet, so planned, and constructed as to have 40% of free land space for future expansion. Rural housing for labour or the artisans is to be planned with some vacant space for a shed to have some cow or goat to rear. The dwelling unit's grid shall be, with one toilet in each house, and assured drinking water supply, should serve the objective. The owner should feel happy and agog to occupy. The idea is that the houses are to be neat, attractive and habitable with basic amenities, such as electricity, water and communications and other needed infrastructure facilities close by. These should be affordable and calling for least maintenance. This massive housing construction is to be carried out with sincerity, speed and proficient planning. Constructed houses remaining unoccupied and in some cases facilitating unholy and nefarious activities in vacant/deserted spaces is a criminal waste of public funds.

Shortage of Dwelling Units in India
chart-1". Shortage of Dwelling Units In India

All these require a colossal resource planning of materials, manpower and machinery besides a suitable acceptable technology and most importantly the finance of Rs.6000 bn in 5 to 6 years timeframe at the rate of Rs.1000 to1200 bn. an year. This is a challenging task. It requires meticulous strategic planning, procedural frame work, national policy, as the gigantic program is spread over in different states having diverse sociological, & deviant customs and divergent practices, Some of these are in extreme climatic zones, and some in certain Geo-hazardous prone areas and some terror-.targeted. The stakeholders are to be taken into confidence and their viewpoints are given due consideration. The state of U.P. is leading in the housing shortage followed by Andhra Pradesh.

To build large scale compact and cost effective habitable dwelling units (for instant willing occupation) spread over several parts of the country, with speed, and round the clock operation independent from weather/(seasonal) conditions, the traditional in situ construction is not a success and was found to be a failure in the past.

Mass housing targets can be achieved by replacing the conventional methods of planning and executing building operation to suit the special and individual common needs optimally using the locally available materials and even rationally utilizing other new/ make shift/substitute resource materials. Partial prefabrication is an approach towards the above operation under controlled conditions. The essence lies in the systematic approach in building methodology and not necessarily particular construction type or design. The methodology for low cost housing has to be of intermediate type-less sophisticated involving less capital investment.

The instant answer or ready solution to this gargantuan plan is to go in for innovative compliant Precast Technology tailored to suit situation specific requirements and easily adaptable to the location, making optimum use of the locally available construction materials and the transport facilities.

This section of the article is only available for our subscribers. Please click here to subscribe to a subscription plan to view this part of the article.

Precast & PEB Construction Opportunities for Entrepreneurs
C. A. Prasad, Director, Metey Engineering & Consultancy and President, PSI, Hyderabad, guides entrepreneurs on the various aspects of Precast and PEB construction business. Quality assurance and timely construction using Precast and PEB produced

Read more ...

Autoclaved Aerated Concrete Blocks
A sunrise segment in India’s building materials industry, the AAC block is finding preference over the red brick and emerging as the future of building construction. Mohit Saboo, Director & CFO BigBloc Construction

Read more ...

A Stellar Modernization of Construction With Precast in NCR, India
What influenced the Stellar Group’s decision to build with precast and invest in a precast plant. The well-known Indian ‘Stellar Group’, which has been successfully working in the construction business for over 25 years, is convinced that precast is the future

Read more ...

Sardinian industry leader invests in automated mould from Progress Group to advance production
Recently, a highly automated mould for the production of pillars from Tecnocom, a company of the Progress Group, has been installed to help industry leader Consultecna stay ahead. Francesco Pireddu explains the decision made in favour of automation although

Read more ...

AHCT’s Smart Solutions for Smart Contractors
Technology companies have developed hardware and software solutions to help manage every aspect of a construction project, no matter how complex or massive the project may be. Harsh Pareek, Regional Sales Director, India and SAARC, Trimble Solutions

Read more ...

Echo Precast Engineering Helps Modernize Pruksa’s Precast Plants
Thailand’s real estate developer Pruksa, a leader in the building sector, modernizes its building solutions with automated hollow core production plant equipped with machinery from Echo Precast Engineering, a company of the PROGRESS GROUP. Real estate developer Pruksa

Read more ...

Dongyue Machinery Group gearing up to meet rising demand for AAC Bricks in India
Dongyue Machinery Group is offering Autoclaves Aerated Concrete (AAC) blocks, brick blocks, hollow blocks, curb stones, color blocks etc. AAC Blocks, which are lightweight concrete blocks, use less cement compared to traditional cement bricks, and are therefore eco-friendly

Read more ...

B.E. Billimoria Changing the Face of India
BE Billimoria & Company is one of India’s leading firms of civil engineering construction contractors. Ranging from commercial, residential spaces to some of the most iconic buildings in the country, like the 316-meter Namaste Tower, are among their project list

Read more ...

Advanced Concrete Curing Systems from Kraft Curing Systems GmbH
Kraft Curing Systems GmbH is offering advanced concrete curing systems that optimize the hardening process of concrete. Kraft provide numerous solutions, from vapor-based (steam) systems mainly for the precast industry, to heating/air circulation systems

Read more ...

LARCO partners with ECHO Precast to set up production site for prefab elements
The production site of LARCO PREFAB S.A. in Welkenraedt, Belgium opened in 2018 and has grown consistently over the years. LARCO produces a range of prefabricated concrete elements such as hollow core slabs, columns, wall panels, soccles

Read more ...

Special prefabricated elements specialist Klaus relies on fully individualised automation solutions
Klaus Hoch- und Tiefbau GmbH is upgrading its machines in the precast concrete plant with several automated systems from progress Maschinen & Automation and Tecnocom - companies of the Progress Group. With the individualised reinforcement machines

Read more ...

Prefab Housing
Civil Construction in India has not been as much industrialized as it has been in the West. Presently, it shares barely 1-2% of the real estate market, though as per a recent study, it is expected to grow @8.5% in the decade of 2016-2026

Read more ...

Light House Projects by Skeleton
The increasing demand for residential units in the country with speedier construction, has encouraged use of innovative technologies that are being practiced the world over. Structural steel with its in-built attributes when integrated

Read more ...

Solutions from Mapei for Precast Concrete
Precast concrete is produced by casting concrete in a re-useable mould or form, which is then cured in a controlled environment. To ensure durability, high strength, low water cement ratio, and improved rheology, use of concrete admixtures is compulsory

Read more ...

Aurobindo Realty Teams up with Precast Expert Elematic to Create History
Aurobindo Realty & Infrastructure, one of the frontrunners in the realty sector in South India, is confident that the southern region will see numerous construction projects being launched during the next 10 years and even beyond

Read more ...

Construction Technologies for Speedy Delivery of Projects
C. A. Prasad, President PSI & Director, Metey Engineering & Consultancy, Hyderabad, discusses the various new construction technologies being adopted by developers and builders in India, and their merits and demerits

Read more ...

Prefabricated Volumetric Modular Construction Prospects & Challenges
Ajay Chourasia, Sr. Principal Scientist, CSIR-Central Building Research Institute (CBRI), Roorkee, reviews the general concepts, PVMC connections, and recommendations for technological interventions and alternate connection systems

Read more ...

Joints in Precast Construction
C. B. Kameswara Rao, Professor, National Institute of Technology, Warangal, gives a presentation of different types of joints in precast construction and of the research done at NITW. Connections and joints are responsible for stability as well as strength

Read more ...

Offsite Construction
Srinidhi Anantharaman explores offsite building construction in a holistic manner and provides an overview of the entire design and construction lifecycle of such buildings, along with the compulsions of architectural, structural and services, design decisions

Read more ...

3D Modular Precast & Prefinished Toilet/Kitchen
Saurabh Purandare, Director, & Khaja Rasool, Structural Engineer, Innovela Building Solutions, Pune, discuss an out-of-the-box construction approach for meeting today’s call for shorter timelines and reduced cost in construction, while ensuring the highest

Read more ...

×
Sign-up for Free Subscription
'India Construction Week'
Weekly e-Newsletter on Construction Industry
Get the latest news, product launches, projects announced / awarded, government policies, investments, and expert views.
Click here to subscribe.