History of R.C.C Door Frame
It was some 30 years back Central Building Research Institute, Roorkee and National Building Organization, New Delhi (both Govt. Of India research organizations) were engaged in developing door & window frames of a versatile building material other than wood. Govt. Of India has always encouraged use of substitute building material for wood in order to save forest wealth & environment.
For windows rolled steel sections, pressed steel sheet sections, aluminum sections & lastly fiber glass material were found to be the best alternatives. However for doors, RCC Door Frames were found to be the best & last option. The ease of casting in three pieces, usage of quality moulds to obtain precise dimensional accuracy & super smooth surface revealed that conventional wooden door frames can be conveniently replaced by precast RCC Door Frames.
Studies & researches finally recognized the suitability of RCC Door Frames which compelled Bureau of Indian standard to formulate standard specification of RCC Door & Window Frames (IS: 6523 of 1983).
Most of the manufacturers of precast RCC Door Frames belong to Vidarbha region. Reason being the sand required for RCC door frames has to be super fine & silt less. It is Kanhan, Pench, Vainganga rivers in Nagpur district where the required quality sand is available. Attempts from other regions for manufacturing the RCC door frames with available sand from nearby rivers were failed as the product did not meet expectations.
The item of RCC Door Frames have been included since long in the Schedule of Rates and Specification of CPWD, PWD (Maharashtra), other State PWD, MES, HUDCO,CIDCO, Indian Railways, MHADA, Housing Boards of Maharashtra & other States, PSU & other Semi Govt. Departments etc.
History of R.C.C Door Frame
Pests & Other Micro Organism Resistant
Excellent Surface finishing with Rock strength
Dimensionally accurate, Easy to assemble
Superior in Quality
Economical : Compared to wooden frames and iron frames
Eco-friendly building material.
Packed in corrugaged boxes for safe transport and storage
Delivered in 3 pieces for easy assembly at site
In costal region, steel frames are ruled out due to highly corrosive condition. Wooden frames are prohibitively expensive. SAPNA CEMENT IND. RCC door frames turn out to be the best alternative in such conditions.
The Wonders of Virgin Block
Each Sapna cement ind. RCC Door Frame is provide with a perfixed virgin block made of high quality dense plastic. Virign block are provided at specific places in all the 3 piecies to facilitate easy and fast fixing of hinges and other fixtures.
The virgin block is prefixed with the reinforcement bar.
Virgin block are provided on both the sections for fixing hinges and other fixture.
It has a holding capacity of 150 Kg.*
Provided for fixing a tower bolt too.
MOUNTING OF HINGES
Drive in the screw using a screw driver.
Avoid use of hammers for fixing hinges.
The wonder block has self threading capacity
Make holes on the wonder block using an undersize drill bit.
The section of the frame members and overall sizes mentioned above are most commonly specified and used everywhere. These are readily available. However we can also supply special section and sizes of door frames for bulk orders.
The first and foremost characteristic of RCC Door Frames is that they are strong & durable. Unlike wooden & steel frames, RCC Door Frames remain unaffected by termite, rusting, decaying & deteriorations even when it comes in constant contact with water. RCC Door Frames are found to be the most suitable frames for all weather conditions. RCC door frames excellent and suitable for luxurious apartment, villas and the low budget homes as well. RCC Door Frames are eco friendly, durable and long lasting that also maintains the traditional elegant and attractive appearance intact
Significance of sapna cement ind RCC Door Frames
RCC Door Frames - The Concrete option for Today and Tomorrow - Ensures strength, quality and environmental factors :
We could talk about the excellent finish but'.
The need of the day is to have building products that accelerate the speed of the construction without compromising on strength, quality and environmental factors.
SAPNA CEMENT IND. Frames are elegant, smooth, easy to assemble, easy to paint and offer simple yet reliable arrangement for mounting hinges, fixtures and shutters.
In fact, SAPNA CEMENT IND. Frames have provided a durable economical and eco-friendly alternative for the building industries.
SAPNA CEMENT IND. Is a name associated with RCC Door Frames required by the building industry. Frames are well researched and designed to provide maximum value for your money. A careful thought has gone into making it the best option available, by all means.
SELECTING THE RIGHT DOOR FRAME
|sr||Description||Size and technical specification|
|1||Cross section of members of door frames (for normally used single rebet frames)||Both in chamfered & molded patterns at exposed corners.|
|2||Overall height of door frames in ft.||6.5 X2.0 , 6.5 X 2.5 , 6.5 X 3.0 , 6.5 X 3.5|
|3||Overall width of door frame in inch||4.O X 2.5 , 5.O X 2.5 , 6 X 2.5 , 10x2.5|
|4||Minimum grade of concrete as per IS Code 6523||M-40|
|5||Longitudinal bars||5 mm dia 3 Nos. M. S. bars.|
|6||Other bars||5 mm dia 3 nos. M. S. bars.|
|7||Quality of M. S. bars. used||Most superior quality|
|8||Provision of Hinge Blocks||3 Nos. White Polyacryalic blocks for each vertical member.|
|9||Provision for tower bolt fixing||2 Nos. White Polyacryalic blocks for each horizontal member.|
|10||Provision of holes for aldrops||2 Holes on each vertical members of 16 mm dia.|
|11||Provision for Holdfast||2 Nuts embedded on back side of each vertical member.|
|12||Type of casting and curing||Factory made product. Casting done on table vibrator and curing in tank/pond in factory.|
|13||Packing style of finished product||Each vertical and horizontal member supplied in 2 ply corrugated box.|
|14||Joint in Masonry||By cement mortar during errection of masonry without the possibility of joint cracks (Homogenous Joints)|
|15||Type of painting||No need of painting|