A high quality concrete floor or pavement requires not only to be level but it should also have high wear resistance, high compressive strength, reduced shrinkage and minimum water permeability.

THE CONCEPT :

The TREMIX method, pioneered by TREMIX AB, SWEDEN and introduced by Aquarius in India in 1987, is a system for laying high quality concrete floors with superior cost-effectiveness. Aquarius subsequently entered into a technical collaboration with TREMIX AB, in 1991 to start production of Vacuum System in India. The key to the use of this method is the dewatering of concrete by vacuum process. Surplus water from the concrete is removed immediately after placing and vibration, reducing the water : cement ratio to an optimum level. Therefore, adopting the TREMIX method facilitates use of concrete with better workability than what is normally possible. A lowered water : cement ratio automatically leads to a noticeable improvement in almost each of the concrete properties

THE OPERATION :

In order to obtain a high quality concrete floor using this method, it is essential to follow the various operations in the correct sequence. Initially, poker vibration is essential, especially at the panel edges. This results in proper compaction of the concrete and hence elimination of voids and entrapped air. Poker vibration never really gives a levelled surface. It is therefore essential to combine this vibration with surface vibration (screeding), in order to obtain a vibrated concrete with a levelled surface. Two passes with surface vibrator are normally recommended. The Surface Vibrator is guided by two men, standing on either side of the panel. Vacuum dewatering process removes surplus water always present in the concrete. This is done using the Vacuum Equipment comprising of Suction Mat Top Cover, Filter pads and Vacuum Pump. The process starts immediately after surface vibration.

Filter pads are placed on the fresh concrete leaving about 4 inches of fresh concrete exposed on all sides. The Top Cover is then placed on the filter pads and rolled out till it covers the strips of exposed concrete on all sides. The Top Cover is then connected to the vacuum pump through a suction hose and the pump is started. Vacuum is immediately created between the filter pads and the top cover. Atmospheric pressure compresses the concrete and the surplus water is squeezed out. This process lowers the water content in the concrete by 15-25%.
 
The dewatering operation takes approx. 1.5 - 2 minutes per centimeter thickness of the floor. The dewatered concrete is compacted and dried to such an extent that it is possible to walk on it without leaving any foot prints. This is the indication of concrete being properly dewatered and ready for finishing. The finishing operations - Floating & Trowelling take place right after dewatering. Floating operation is done with Floating disc. This ensures aftermixing of sand & cement particles, further compaction and closing the pores on the surface.
Floating operation generates skid-free finish. Trowelling is done with Trowelling blades in order to further improve the wear resistance, minimize dusting and obtain smoother finish. Repeated passes with disc and blades improve the wear resistance substantially.

Why only TREMIX method?

Suction Mat of special grade multilayered polymer sheets alongwith reinforced distance cushions on the Filter Pads ensure sufficient cross- sectional area to squeeze out and remove excess water from the concrete. This design is a prerequisite for effective dewatering.

Our Flex Screed is a surface vibrator, which is used in modular construction. Designed in conformation with international quality standards, our range is suitable for varying panel widths from 6 meters to 12 meters. It is provided with turnbuckle that gives camber at each joint up to 10 mm.

• Flex screed is the surface vibrator of modular construction, ideal for varying panel widths from 6 meters to 12 meters.
• Standard sections of 1, 2 and 3 mtrs. length. Special lengths on request.
• Individual sections to be joined together to suit the panel width.
• Individual sections carry eccentric shaft; hence uniform vibrations throughout the vibrator length.
• Option of manual or electric winch.
• Turnbuckle provided to give camber at each joint up to 10 mm.

Flex Screed SVE Technical Data

Electric Motor	- 3 Phase,  415 V., 50 Hz.
Rated Current	- 4.6 A.
Power	- 2.2 kW.
Centrifugal Force	- 500 Nm
Working speed	-1-1.5 mtr/min.
Dimensions
Beam height	- 490 mm
Beam width	- 350 mm
Working length
3 m. section	- 3100 mm
1.5 m. section	- 1550 mm
Max. length of the screed	- 12 mtr.
Weights
Section 1.5 m	- 25 Kg
Section 3 m	- 50 Kg
Drive unit 3 m	- 90 Kg

We manufacture Skimfloater/Power Trowel, which is available in various models like G900E, G900P, G700E and G700P. These high efficiency, hand held, lightweight machines are mainly used for floating and trowelling concrete surfaces. Assembled with quality tested steel parts, these machines are widely used in Construction Industry. The G700E machine is ideal for epoxy screed finishing.

The Skimfloater is a highly efficient, hand held, light weight machine for floating and trowelling concrete surfaces.

• Two speed operation for electric version.
• Dead man's Grip for operator safety.
• Adjustable & foldable handle .
• Dual function - floating and trowelling
• Easy changeover from disc to blades
• Blade angle adjustable while machine is in operation.
• All controls on handle, easily accessible.
• G 700E also ideally suitable for Epoxy Screed finishing.

Skimfloater Technical Data

	G900E	G700E
Electric Motor	3 Phase,415 V,50 Hz.	3 Phase,415 V,50 Hz
Power	1.8 / 1.5 kW.	1.8 / 1.5 kW.
Rated Current	5.0 / 3.3 A.	5.0 / 3.3 A.
Speed (Output)	115 / 57 rpm.	115 / 57 rpm.
Max. reach	3 mtrs.	2.2 mtrs.
Outer diameter of guard	1000 mm.	780 mm.
Diameter of floating disc	985 mm.	750 mm.
Working dia.	900 mm.	700 mm.
No. of Trowelling Blades	4	4
Machine weight with 4 blades	78 kg	72 Kg
Weight of floating disc	16 kg	9 kg
Petrol Version available on request. Briggs & Stratton Vertical Shaft engine is used as a prime mover.

Plate Compactor Type KM160 is particularly suitable for application like compacting loose gravel and sand on footpaths, sub-grade for concrete floors, trenches, column footings & for small repair works like pot-hole repairs.

• Available in two versions. Diesel and Electric.
• Working speed 20m/min.
• Effective compaction depth 25cm. depending on material to be compacted.
• Permanently greased vibrator element.
• Heavy duty folding wheels for in-site movement.
• Centrifugal clutch allows easy start of engine on no-load condition.
• Conveniently located control
• 16mm thick heavy-duty bottom plate.
• Adjustable handle length.
• Heavy-duty coil springs and rubber dampers ensure minimum vibrations reaching engine and handle.

KM160 Technical Data

Diesel Engine	Greaves 1520 4.4 HP
Electric Motor	3 HP, 3 Phase, 415V, 50 Hz.
Frequency	75 Hz. (4500 vibr. / min.)
Centrifugal Force	16 kN.(equivalent to 8 tons/m2 )
Width	440 mm.
Height	880 mm.
Length	1000 mm.
Working Surface Of Base Plate	450 x 440 mm.
Thickness Of Base Plate	16 mm.
Weight	160 Kg.
Area Coverage	125 sq. mtrs. / hour (with 4 passes)
Travel Speed	20 mtrs. / min.

M-B-W Inc. U.S.A. manufactures compact slipform paver for kerb laying applications. This machine is suitable for laying median kerbs, kerb and gutters (channel section) and also some wider profiles.

Features:

• Option of pouring either off -centre with model C 101 (i.e. left side) or between center with mo6e\ CG 200 (i.e. between two rear wheels) depending upon size of the profile.
• Option of us \g hoppers of different sizes to suit the profile.
• Self adjusting "Cross Slope" facility provided to ensure mould in correct position irrespective of lateral movement of hopper.
• Flexibility of using 2 or 3 hydraulic pokers depending upon size of hopper and prof\\e.
• Sufficient traction is available for pouring profiles in line and level.
• Favourable power: weight ratio.
• High output of up to 12 m/minutes depending upon size of profile.

Kerb Laying Machine Technical Data

	MBW Model C 101	MBW Model CG 200
Kerb profile capability	460 mm. H x 460 mm. W	460 mm. H x 1200 mm. W
Machine Weight	1236 kg.	1540 kg.
Diesel Engine	B&S DAIHATSU 26.5 HP Water cooled, 3 in-line, 4 Cycle, OHV Engine	B&S DAIHATSU 26.5 HP Water cooled, 3 in-line, 4 Cycle, OHV Engine
Drive	Provided to one front and one rear wheel.	Provided to all 3 wheels
Pouring Speed	Up to 12 mtrs. / min.	Up to 12 mtrs. / min.

Somero Enterprises, UK offers Laser Guided Vibrating & leveling machines,which enable laying of concrete floors at high speed. Somero product range includes:

• Compact lightweight machine CopperHead XD also suitable for upper deck/ suspended slabs.
• X-tream Platform for ground slabs
• PowerRake for quick distribution of concrete

CopperHead XD and X-tream Platform compliment the high speed concrete supply from batching plant and hence can lay 1000 to 5000 sq.mtrs. of concrete floors per day. The CopperHead XD is a self-propelled machine with a dual laser controlled screed head fitted on it. It has petrol engine as a prime mover, a dual grade laser transmitter, two laser receivers on screed board, 3 m screed board and a scrapper. The two laser receivers fitted on the screed board continuously receive the signal from the transmitter. This signal is processed and screed level is adjusted by a fast response hydraulic system.

Concrete supplied through a concrete pump or transit mixer is redistributed using PowerRake. PowerRake is useful in maximizing the utility of CopperHead. Furthermore, both these machines are designed for concrete having slump of around 120 mm. The CopperHead is pushed into the concrete. Screed head is then activated and machine is driven back.

The scrapper blade removes the excess concrete and screed board vibrates and finishes the concrete. The light weight chassis of the CopperHead enables it to be driven onto mesh, reinforcing bars and even buried pipes. Solid ATV tyres are fitted to the machine which enables it to be used on any surface. It is small enough to fit in a pick-up and can be easily maneuvered by single operator.

PowerRake
Width	212 cm. at head,  101. cm at tyres
Length	268 cm .
Overall Height	134 cm without mast.
Overall Weight	406 kg. with rake head
Laser System	Trimble make
Engine	Robin America EH41 (13.5 HP)
Start	Electric start with secondary pull cord
Control	manual throttle and choke with electric shutoff
Propel	4 wheel drive with hydraulic motors
Plow Elevation Control	Laser control of head via head lift cylinder

CopperHead XD
Width	91 cm.
Length	279 cm.
Overall Height	110 cm.
Overall Weight	363 kg. with screed head
Laser System	Trimble make
Engine	Robin America EH41 (13.5 HP)
Type	4 Stroke petrol, 1 Cylinder, Air cooled, electric start
Self Propel	Standard
Auto Level	Standard
Power Steer	Standard
Vibrator Soft Start	Standard