Presenting the smarter choice for construction - Bharath Ready Mix Concrete, for quicker construction needs. Grade M10 to M40. Each batch of ready-mixed concrete is tailor-made according to the specifics of the contractor and is delivered to the contractor in a plastic condition, usually in the cylindrical trucks.
Bharath Cement Products with state of the art infrastructure & process driven systems has proved to be a quality product supplier to the construction companies, real estate developers, Contractors & individuals are it on the parameters of innovative and cost effective too. The company has invested in the manufacturing facilities with the sophisticated equipment to meet the expanding demand for the quality cement viz: Ready Mix Concrete. Bharath Cement Products adhere to QCI (Quality Council of India) norms & procedure.
Benefits of ready-mixed concrete over Site Mixed Concrete
Diversity of Solutions
A wide variety of ready-mixed concrete can be produced, with ease and on demand, by varying the proportions/combinations of the cement, aggregates and admixtures.
Ready mixed concrete is more cost effective because:
The use of RMC reduces air pollution in and around the worksite as the mixing is done at the plant.
To ensure speedy and efficient delivery, the SSCT team will survey the site to ensure that the transit mixer trucks will have unimpaired access to the site. Among the factors they will consider are:
Pumping is one of the most efficient means of pouring concrete. In many situations such as in high rise buildings - pumping is the only viable option. At other times, the ease and speed of pumping concrete makes it the most economical method of pouring concrete.
Ready mixed concrete is available in many variants, each of which has unique properties and uses. Whether your project is still in the planning stage, or you are experiencing concreting difficulties, the SSCT team will work with you to understand your needs and deliver the most appropriate concrete products and services.
Fresh concrete needs attention and protection till it achieves sufficient strength and maturity. In the absence of proper care, concrete could develop defects that possibly cannot be rectified at the later stage. The SSCT's technical experts work with customers to ensure best practices for the proper use and maintenance of concrete are followed so that the resultant structure's strength, maturity and durability are ensured.
Make Your Concrete Last Longer
Here are a few tips that will enable you to ensure that concrete remains good throughout its intended lifespan:
Ordering ready mixed concrete
Do consult a qualified structural designer to determine the grade of concrete required for your structure. Ensure that the SSCT technical team is informed about the correct grade of concrete along with other relevant details (specific contractual requirements or suggestions from the structural designer).
Placing of Concrete
The improper placing of concrete could result in a defective structure that may require expensive repairs. While placing concrete, to ensure that:
The concrete is deposited in or very near to its final position.
The concrete is not placed in large heaps on the formwork. Moving heaped concrete manually or with a vibrator should also be avoided.
The concrete is poured vertically from a height of less than one meter; otherwise, it may lead to segregation.
In mass concrete works, the concrete is placed in uniform layers; sloped layers may lead to segregation.
When thickness/depth of structure is more than 300 mm (1 foot), concrete is placed in two or more layers of equal thickness/depth. In general, the allowable thickness of each concrete layer ranges from 150 mm (6 inches) to 300 mm (1 foot).
In the layered construction, the fresh layer of concrete is placed only after the lower layer is properly compacted, but before that layer has set. If the continuity in placement is not maintained, it will lead to the formation of cold joints that will weaken the structure.
For slabs, concrete placement starts from the corners and ends and then continues inwards.
There is no displacement of reinforcement and/or damage to formworks.
For large concrete pours, proper planning and coordination are crucial in avoiding delays, cold joints, or segregation.
Compaction of Concrete
Concrete, unless it is specifically designed for self-compaction, must be compacted. Compacting concrete removes the entrapped air and voids, and consequently increases the strength and durability of the concrete. To achieve uniformly compacted dense concrete:
In the general construction of slabs, beams and columns, use needle vibrators of 50 mm diameter. For thin sections, in confined locations, and in structures with congested reinforcement, use a 30 mm diameter needle vibrator.
Ensure adequate supply of spare vibrators and adequate fuel at the site.
The concrete surface being compacted must be visible.
The needle should be inserted quickly and allowed to quickly and completely penetrate the concrete on its own weight.
The needle should not be left in the concrete for more than 10 seconds. If the concrete is being pumped, it will have a slump of 80-120 mm; in this case, the needle should not be left in the concrete for more than 5 seconds. Over vibration may cause mortar to accumulate on the top with the resultant thin layer having poor strength.
Use experienced operators to man vibrators; they can determine when adequate compaction is achieved. Typical signs of sufficient compaction are air bubbles on the surface and the constant drone of the needle vibrator.
Withdraw the needle from concrete slowly to ensure that the hole left by the needle is filled.
Insert needles in the staggered fashion to ensure uniform compaction of the concrete.
In a layered placement, the needle should penetrate the bottom layer by 80-100 mm.
For compaction in hot weather (for concreting of slabs), use a light initial vibration and then another round of vibration after about 30 minutes; this helps in significantly reducing shrinkage cracks.
If concrete segregates due to over vibration, fine aggregates tend to accumulate on the concrete surface and there is a tendency to shrink and crack. To avoid this, plough up and mix coarse aggregates with the help of forks (punja) before finishing.
Wherever construction joint is to be provided, stop-ends should be firmly fixed to avoid movement of joints and ensure proper compaction of the concrete near stop-ends.
Curing of Concrete
Curing of concrete, which helps retain water in concrete that may have evaporated due to prevailing high ambient temperatures and/or windy conditions, is the last but significant step in concrete construction. Inadequate curing can result in the concrete of poor strength and durability.
Curing is generally done by sprinkling or spraying of water, by ponding or immersion, and by covering exposed surfaces with wet jute or hessian cloth. For slabs, ponding is the best method of curing. For effective curing of concrete, do ensure that:
Continuous and adequate supply of water is available at the site throughout the curing period.
The exposed concrete surfaces are kept in the wet or damp condition for at least 10 days from the date of placing concrete. Curing for 14 days would be ideal.
In hot weather, curing by the sprinkling of water is started within 4 to 5 hours of batching of concrete and continued till bunds are prepared and ponding is done.
In some cases, when the temperature is above 30Â°C and strong winds are blowing, concrete surfaces may dry very fast inducing plastic shrinkage cracks as early as within 30 minutes of concrete placing. In such a situation, trowel the cracked concrete surface while it is still plastic to erase the cracks and then ensure that the concrete surface is continuously kept wet.
Curing water and material used for bunds are free of substances which may stain or discolor concrete.
Preferably cement mortar is used to prepare for bunds instead of earth.
Bunds for ponding of water are maintained throughout the curing period.
The height of bunds is sufficient for the ponding water to cover entire area uniformly including corners and edges. To avoid dry spots, water should be ponded for at least 20 mm above the highest point of concrete surface.br/> For sloped roofs, staircases, columns and other vertical surfaces, cover the entire surface with hessian or jute cloth which is saturated with water throughout the curing period.
Product & Services
Ready Mixed Concrete, Transport and Pumping, Technical Services, FAQ's
Serving the nation with quality RMC(Ready Mix Concrete) Safely & On-Time
NO! Restrain masons at the site. Do not force Transit Mixer Operators to add water to ready-mixed concrete. Consequences of such actions can be severe. Properly designed ready-mixed concrete contains optimum water. Inform the ready mixed concrete supplier if workability (slump) of ready-mixed concrete is not as expected. If required, dosing of admixtures along with a small quantity of water would be done by the ready mixed concrete supplier´s technical personnel.
Ready-mixed concrete mixes are supplied only after plant trials.
To ensure consistent quality, incoming raw materials are regularly tested. Sampling and testing of ready-mixed concrete is done every day at SSCT.
The transit mixers are about 9 m long, 2.5 m wide and 3.8 m high
SSCT can deliver a minimum load size of 1 cubic meter.
During winters: Depending on the workability, the ready mixed concrete might be usable for up to 3 hours.
During summers: In hot weather, ready-mixed concrete may start stiffening within an hour, depending on the prevailing ambient temperature. If the ready mixed concrete dries faster, sprinkling with water or curing compounds is required to prevent the cracking of the plastic surface.
Indian Standards specify that ready-mixed concrete must be discharged from the transit mixer truck within 2 hours of the time of loading. It is also mandatory to make arrangements at a site to ensure that a full load of ready-mixed concrete is discharged within 30 minutes of arrival on site.
When the ready mixed concrete is transported to the construction site, the ready mixed concrete is pushed deeper into the drum attached to the back of the truck with the help of a spiral blade fitted within the drum. This is achieved by rotating the drum in one direction. This process is known as charging the transit mixer.
At the construction site, the drum is rotated in the other direction, which forces the ready mixed concrete out of the drum. This process is known as discharging. The ready mixed concrete may be discharged directly into chutes, pumps or on to conveyor belts.
Pumps are designed to facilitate pumping of ready mixed concrete through the pipeline under high hydraulic pressure. When ready mixed concrete is pushed through the pipeline, it is separated from pipeline wall by a lubricating layer of cement, water and fine aggregates. Ready-mixed concrete should have enough cohesiveness and workability for the mix to move easily through a pipeline, bends, reducers and hoses.
At SSCT, ready-mixed concrete is produced in its fully automated and computerized concrete batching plants at multiple locations across India. SSCT manufactures and supplies concrete mixes, which are designed in its well-equipped laboratories as per established procedures to comply with various provisions of Indian Standards. SSCT’s experienced logistics team works closely with you to ensure that the concrete of requisite quality is delivered on time and in the appropriate quantities.
The Quality assurance systems and procedures implemented by SSCT monitors every stage of the entire business process. Right from the processing of an order, purchase/control of materials and concrete mix design to production, sales, delivery and control of concrete.
The quality system is periodically reviewed for improvement on a continual basis.
The compressive strength of concrete: Cubes are cast at the plant as well as at the site. The customer can, therefore, ascertain that the concrete he receives at his site has the designed strength.
Durability: Scientifically designed mixes to ensure the better durability of the structures.
Workability: Slump is tested immediately after the production and at the time of pour. The required slump is ensured.
Test Certificates are issued regularly for testing of concrete.