‘No assurance that house will not collapse in 10 yrs’
Rajkumar Pillai of Indian Concrete Institute gives a perspective on Bangalore Mirror’s Tuesday report that quality of houses and infrastructure projects, under way in the city for the past one and half years is suspect because of poor quality sand
The interview:
The government says that about five lakh tons of sand is required every month in the state. Do you concur?
By my calculation, I think Bangalore alone consumes one million tons of sand every month! The concrete usage is calculated fairly accurately. In Bangalore alone, we consume 5 lakh tons of cement, 50% of which is used to make concrete every month. Now if we calculate for concrete alone at the rate of 800 kgs of sand per cu. m. of concrete then we need almost 5.5 lakh tones of sand for producing concrete alone. Then there is sand being used for making blocks, plaster and other odds and ends used in construction. In terms of business today, sand is a Rs 600-crore business a month today. And it is all unregulated.
Given the shortage of sand, many people claim that they use alternatives in its place. How effective are these?
Let me make it very clear that you cannot replace sand completely with alternatives likes filter sand crushed metal quarry dust or stone dust etc. You can only substitute it by 50%. If you want to replace it completely, then you use manufactured sand, which is a very expensive affair. There are no more than two players who produce less than 5% of the requirement. Filter sand which is very common (especially among high rises) is extremely dangerous. This is made by using soil which is treated to high water pressure. But Bangalore’s geography has alluvial soil that has a very high content of clay which will not help. The effect will be seen in 20 years. In the ’90s, we saw a spate of collapses in Bombay because in the ’70s when there was a sand shortage, people had used sea sand which is inferior. Bangalore, I am afraid, is headed the same way.
What is a solution that can address the ecological concerns as well?
Whether we like it or not sand mining will be done. What is required a clear policy on the matter. By the time sand reaches the end user after it is mined, it has changed about four hands. Nobody knows what the quality is. A man who is building his house should be assured that it will not collapse in 10 years! But the current system does not give him that assurance.
Please note that under 66A of the IT Act, sending offensive or menacing messages through electronic communication service and sending false messages to cheat, mislead or deceive people or to cause annoyance to them is punishable. It is obligatory on kemmannu.com to provide the IP address and other details of senders of such comments, to the authority concerned upon request. Hence, sending offensive comments using kemmannu.com will be purely at your own risk, and in no way will Kemmannu.com be held responsible.
Similarly, Kemmannu.com reserves the right to edit / block / delete the messages without notice any content received from readers.
Land/Houses for Sale in Kaup, Manipal, Kallianpur, Santhekatte, Uppor, Nejar, Kemmannu, Malpe, Ambalpady.
Final Journey of Emilian Bridget D’Souza (80 years) | LIVE from Kemmannu | Udupi |
2 BHK Flat for sale on the 6th floor of Eden Heritage, Santhekatte, Kallianpur, Udupi
Agricultural Land at Alevoor and Malpe (UDUPI) for Sale - Contact Direct to 9008199430.
Final Journey of Judith Lewis (91 years) | LIVE From Kallianpur
Rozaricho Gaanch April, 2024 - Ester issue
Final Journey Of Theresa D’Souza (79 years) | LIVE From Kemmannu | Udupi |
Invest Smart and Earn Big!
Creating a World of Peaceful Stay!
For the Future Perfect Life that you Deserve! Contact : Rohan Corporation, Mangalore.
Final Journey Of Joe Victor Lewis (46 years) | LIVE From Kemmannu | Organ Donor | Udupi |
Milagres Cathedral, Kallianpur, Udupi - Parish Bulletin - Feb 2024 Issue
Way Of Cross on Good Friday 2024 | Live From | St. Theresa’s Church, Kemmannu, Udupi | LIVE
Good Friday 2024 | St. Theresa’s Church, Kemmannu | LIVE | Udupi
Maundy Thursday 2024 | LIVE From St. Theresa’s Church, Kemmannu | Udupi |
Kemmennu for sale 1 BHK 628 sqft, Air Conditioned flat
Symphony98 Releases Soul-Stirring Rendition of Lenten Hymn "Khursa Thain"
Palm Sunday 2024 at St. Theresa’s Church, Kemmannu | LIVE
Final Journey of Patrick Oliveira (83 years) || LIVE From Kemmannu
Carmel School Science Exhibition Day || Kmmannu Channel
Final Journey of Prakash Crasta | LIVE From Kemmannu || Kemmannu Channel
ಪ್ರಗತಿ ಮಹಿಳಾ ಮಹಾ ಸಂಘ | ಸ್ತ್ರೀಯಾಂಚ್ಯಾ ದಿಸಾಚೊ ಸಂಭ್ರಮ್ 2024 || ಸಾಸ್ತಾನ್ ಘಟಕ್
Valentine’s Day Special❤️||Multi-lingual Covers || Symphony98 From Kemmannu
Rozaricho Gaanch December 2023 issue, Mount Rosary Church Santhekatte Kallianpur, Udupi
An Ernest Appeal From Milagres Cathedral, Kallianpur, Diocese of Udupi
Diocese of Udupi - Uzvd Decennial Special Issue
Final Journey Of Canute Pinto (52 years) | LIVE From Mount Rosary Church | Kallianpura | Udupi
Earth Angels Anniversary | Comedy Show 2024 | Live From St. Theresa’s Church | Kemmannu | Udupi
Kemmannu Cricket Match 2024 | LIVE from Kemmannu
Naturya - Taste of Namma Udupi - Order NOW
New Management takes over Bannur Mutton, Santhekatte, Kallianpur. Visit us and feel the difference.
Focus Studio, Near Hotel Kidiyoor, Udupi
Earth Angels - Kemmannu Since 2023
Kemmannu Channel - Ktv Live Stream - To Book - Contact Here
Click here for Kemmannu Knn Facebook Link