img

Technology

FaL-G is a technological renaissance of the age-old pozzolanic chemistry proven for its strength and durabilityRead more

img

Products

FaL-G Technology is amenable for a number of products such as bricks & blocks, mortar, concrete in both RCC & PCC, and precast elements.Read more

img

Services

Project Management : - Techno Economic feasibility study -Raw materials quality assessment -Demand / supply studies ...Read more

Company News


Jan 23, 2017 : Patent granted to No Aggregate or Nano Concrete

Oct 29, 2016 : Collaborative research with NIT-Warangal

Jul 05, 2016 : Lr to Hon'ble Members of Parliament seeking to support National Action Plan on fly ash brick

Jul 02, 2016 : Letter to Hon'ble PM seeking FaL-G to be taken up as National Action Plan

Nov 30, 2015 : Video link to see Construction of Sri Sai temple with INSWAREB's advanced concrete technology

Dec 07. 2015 : Press meet on COP21 and FaL-G to save mother earth

Mar 09, 2014 : Punah Pratishta of sacred Temple Post (Dhwajasthambham)

Sep 21, 2014 : Theme note on CDM-Cheque Distribution Ceremony

July 01,2014 : Concrete in India-Need for Transition: Article in Master Builder

July 27, 2014 : Dynamic Concrete-Hindu Coverage

Jul 26, 2013 : Video link to see the interaction of INSWAREB with UNFCCC, as Observer

Aug 9, 2013 : Video Link to see the casting of Dome with Nano concrete

Apr 09, 2013 : Eanaadu coverage on NAC cast in-situ slab

May 19, 2013 : The Hindu on Nano Concrete

Jul 26,2013 : INSWAREB's inputs as Observer to COP

Aug 18, 2012 : photos of 6th CDM workshop

Aug 18, 2012 : Theme Note to 6th CDM Workshop

Nov, 2010 : FaL-G: CDM Project; Article published by Master Builder

Aug 08, 2012 : Innovations in Development pub.by Min.of Finance, GOI and World Bank

March 24, 2012 : Joint Research with GVP College of Engg, Visakhapatnam on No-Aggregate concrete

Aug 27, 2011 : Salient Photographs of 5th National Workshop on CDM, Chennai, Saturday, the 27th August, 2011

June 12, 2011 : Open letter to the CM of Tamilnadu for promoting biomass based power and, creating employment through fly ash brick activity as the State-owned program

June 01, 2011 : Award of Rs. One million to demonstrate parallel technology to FaL-G in Sustainable Development point of view

September 02,2010 : Photos of IV National workshop on CDM

September 09,2010 : Pictural Overview of Fal-G Mansion renovation

February 10,2010 : Note on FaL-G Mansion Renovation

January 18,2010 : Press Note on Concrete without C.Ag

August 09,2009 : III National Workshop on CDM & Cheque distribution ceremony

July 09,2009 : Letter to Prime Minister on FaL-G-Climate Change

May 23,2009 : Press Release on Pune Workshop

April 09,2009 : News Release on Bharath Oman Refinaries Ltd (BORL) Assignment

March 03,2009 : News Release on GMR Assignment

January 20,2009 : Message to President of USA

January 20,2009 : Press note on Message to President of USA

December 9,2008 : Response to the Draft Notification dated 6-11-08 from MOEF, GOI, on fly ash

November 6,2008 : Draft Notification on fly ash

August 4,2008 : Carbon Credit revenue for the year 2007-08 from World Bank

March 31,2008 : Collaboration between Besser and EcoCarbon

August 30-31, 2007 : National Workshop on Capacity Building in CDM Projects Brouchure

July 23, 2007 : National Workshop on Capacity Building in CDM Projects

July 20, 2007 : Fal-g Bricks for better homes

March 27, 2007 : INSWAREB Press Release 20-03-07

February 28, 2007 : Letter to FinanceMinister on CDM Revenue

February 28, 2007 : Letter to Finance Minister on waival of Excise Duty on fly ash Bricks & Blocks

August 18, 2006 : Certificate of Appreciation from World Bank

July 26, 2006 : Signing of ERPA between World Bank and Eco Carbon Pvt. Ltd.

July 26, 2006 : Press release from World_Bank

May 10, 2006 : Letter to Editor EconomicTimes on Dr Chand article

April 19, 2006 : India-FaL-G Brick and Blocks Project No.1

April 10, 2006 : Flyash buliding blocks for the future -V.Suresh

January 23, 2006 : Letter to PM on Employment generation through FaL-G

December 15, 2005 : Counter to A.P Govt stand on use of Fly Ash

December 03, 2005 : Translation to Eenadu News

December 03, 2005 : Rejoinder to Eenadu News on Fly Ash Blend

December 03, 2005 : Tie up with Japan Carbon Finance

June09, 2004 : WorldBank - Letter of Intent - For Carbon Credits from FaL-G Brick Activity.

October 27, 2003 : FaL-Gfor Mass Housing Scheme

September,2003 : Fly Ash - Rice Husk Ash Workshop

July,2003 : Inaugural Address

July,2003 : Valedictory Address

July,2003 : Recommendations

July,2003 : Metabolism- Cement Chemistry

December 18, 2002 : Panchayat Raj : FaL-G for structural concrete

December 06, 2002 : FaL-G Bricks to offer Carbon Credits to World Bank



Find us on

December 3, 2005

Press Note from INSWAREB, Visakhapatnam

Dear Friends,

     INSWAREB has been promoting the cause of fly ash utilization in construction industry on the plank of Sustainable Development. In the same spirit INSWAREB has taken initiative to motivate government for blending fly ash to cement in all the irrigation projects in order to achieve more durability.

     What does it mean? It means, if a structure made out of OPC (Ordinary Portland Cement) lives for 20-30 years, by blending fly ash to cement, the longevity of structure can be enhanced to over 60-90 years. Thanks to the Government of AP, the proposal was evaluated and analysed carefully before according green signal. A lot of technical merits and data, including from international research, were taken into consideration. The subject was discussed at length at the round table meet on 3rd March at The International Symposium on Concrete Technology, participated by various ENCs, Chief Engineers of AP Government and International luminaries of Concrete Technology all over the World.

     In this background a news item in the press caused a lot of concern and anxiety to us for the misleading education that it contained. So, as the proponents of the cause, and as the member of the Working Group on Fly ash Utilisation, we feel it our responsibility to clarify issues for the benefit of press and readers as follows:

  1. Blending fly ash to OPC is a value addition practice, increasing the engineering properties of concrete to enhance the long-term durability.

  2. Every OPC has about 25% surplus lime that gets released during curing. Part of this lime leaches out during curing (manifesting as white patches on the surface of structure) and balance of it remains within the concrete. This lime is detrimental in today's context of increased levels of background pollution. Addition of fly ash converts this lime towards strength-rendering mineralogy, in turn, making the concrete more impervious. Improved impermeability prevents the ingress of moisture and atmospheric pollutants into the concrete, abating the chances of corrosion. This is how the concrete containing fly ash gets long-term durability. The chart below shows the increase in the percentage of strength-rendering mineralogy with increase in fly ash content in a typical case study.

Constituents OPC : Fly ash

Strength-rendering hydrated mineralogy

Surplus lime as Ca(OH)2.

100: --

75

25

85 : 15

83.6

16.4

75 : 25

90.6

9.4

65: 35

99.0

1.0

  1. In concrete the design strength means 28-day strength. When fly ash is added, though it is proved that ultimate strength increases greater than that of OPC, the early strengths need to be augmented. For this purpose, the mix design is redesigned targeting the design strength. In this process, the cementitious (OPC + Fly ash) content may increase and admixtures are used. In either case there are cost implications.

  2.  Moreover, in construction of big irrigation projects, batching plants are used to prepare the concrete with sustainable quality parameters. When fly ash is proposed for blending, additional facilities have to be created to store and dose the fly ash, which has additional cost implications.

  3.  Hence, it is not true to consider that cement is replaced by fly ash and commensurate cost savings would be there.

  4. In view of the contribution of fly ash to long term durability, the Works in certain countries procure fly ash at greater cost than OPC. Thus the role of fly ash has to be upheld as a value added product rather than a cheap product.

  5. It is not true that fly ash is available at a throw away price. A lot of investments are involved to collect good fly ash. Hence thermal plants are charging price for fly ash towards handling charges.

  6. In view of all these facts it should be the concern of Government to weigh the enhancement of durability by two to three fold and the macro-level contribution to the kitty of exchequer. This is colossal money in service of mankind in comparison to a few crores of gains or losses araised out of fly ash blending.

  7. At the national level, an estimated investment of Rs. 50,000 crores is made for concrete annually whose life may not be enhanced under present concrete practices with high grade OPC. Blending of fly ash would certainly achieve this object. Enhancement of service life at least by two times on a conservative basis means postponement of Rs. 50,000 crore investment annually for over 30 years. In view of this fact all world-class structures blend fly ash as mandatory exercise, the latest example being the World's largest dam, Three Gorges Dam in China, which has added as high as 40% in concrete.

     To clarify further on these issues INSWAREB is going to conduct a lunch-on press meet on 14th at 1200 noon at Green Park. A separate invitation would be sent to you through Press Club.

     Meanwhile we solicit the press and everybody concerned to uphold the object of blending fly ash as an exercise towards Sustainable Development with macro-level benefits to the mankind, ecology and environment, giving least importance to other petty considerations.

With warm personal regards

Dr N Bhanumathidas, Director General 

N Kalidas,  Director.  (Mobile: 98481-91453)


Back