Ahmedabad, Gujarat, India
Our Products
The strength of concrete is generally estimated after 28 days by crushing field test cubes or cylinders made from the representative concrete used for the structure. The utility of ascertaining strength after 28 days is often questioned since by this time considerable concrete would have been placed and work may have progressed. It is then rather too late for remedial measures. It is therefore of tremendous advantage to predict 28 days strength within a few hours of casting the concrete so that, we have a good idea about the strength of the concrete.
The rate of gain of strength of concrete depends on the reaction rate of cement and additions with water (Hydration). In common with all chemical reactions, the rate of reaction depends on reaction of temp. Higher reaction temperature gives higher rate of reaction e.g. the concrete gains strength more rapidly when its temp. is higher. Accelerated curing is the process by which the temperature of the concrete is raised artificially by applying external heat to speed up the rate of gain in strength.
The test method covers procedures for curing test specimens of concrete stored under conditions intended to accelerate the development of strength. The procedures are: Procedure A- Warm Water Method, Procedure B-Boiling Water Method
Accelerated Curing Tank having capacity to accommodate 6/12/18 Concrete Cubes of 150mm size with a facility for accelerated curing by Boiling water method up to temperature range : 100 +/- 2 deg.C as per IS standard IS : 9013. Also it will have capacity for curing by warm water method at temperature 55 +/- 2 deg.C
Tank will consist of a rectangular double walled metal cabinet, inside lined with stainless steel, outer powder coated. Easily replaceable high Wattage heaters are mounted in side the chamber. A slow speed stirrer is provided to circulate water inside the chamber to maintain the uniform temperature of water. A strong stainless steel perforated platform is provided for keeping the cubes and also have a lid with lifting handle to cover the chamber.
The temperature is indicated and controlled by a DIGITAL auto tuning PID Temp. Controller with soak timer to control the duration of heating and then to shut down the system without manual attendance. The front panel will have power supply indicating lamp, control action indication lamp and one main switch. Suitable for operation on 220 V, 50 Hz single phase, AC supply or 440 V 50 Hz, three phase AC supply, for bigger size of curing tank.
Rubber hand Gloves. Spare Heaters. Low water Level cut off device to safeguard heaters against low water level burn out In built refrigeration system for curing at 27 deg C
Also Available
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Double walled, inside chamber stainless steel, outer body made of CRC/G.I. - powder coated, Temp. Range from ambient +5 C to 60 C controlled by Dual Display Microprocessor based Digital Temp. Controller with +/- 0.5 accuracy, Humidity range from atmospheric humidity to 95 % controlled by Dual display Microprocessor based Digital Temp. Controller (Dry and Wet bulb method) with + 3 % RH. Inner water tank made of stainless steel with ball cock valve. Front door has a full view glass observation window.
With Refrigeration System. Double walled, inside chamber stainless steel, outer body made of CRC/G.I. - powder coated, Temp. Range from 10 C to 60 C controlled by Dual display microprocessor based Digital temp. indicator cum controller with 0.5 C accuracy or better. Cooling system consist of high efficiency Kirloskar Make compressor with relevant accessories. Humidity range from atmospheric humidity to 95 % controlled by Dual display Microprocessor based Digital Temp. Controller (Dry and Wet bulb method) with accuracy + 3 % RH or better. Inner water tank made of stainless steel with ball cock valve. Front door has a full view glass observation window
The above Humidity Oven can be converted into PLANT GROWTH CHAMBER by using 4 fluorescent tube light provided with 24 hours ON/OFF programmable timer for Day /Night effect. Temp. range 15 to 60 C. At extra cost.
Double wall construction interior fabricated of stainless steel(S.S.304). Exterior of corrosion resistant galvanized sheet, finished in powder coated epoxy paint. Full size glass inner door to inspect samples without affecting the chamber temp. outer double walled metal door with magnetic gasket and lock. Unit mounted on castor wheels for easy movement.
70mm polyurethane insulation (PUF) to ensure better insulation and less leakage of temperature or 10% RH from inner body to the surroundings.
Temperature is maintained by a quiet running blower circulation air through out the chamber. Forced air circulated vertically down and re circulated through out the chamber for uniform temperature and humidity.
Humidity created by steam injection method. The boiler tank is fitted in the back side of the chamber for better servicing, Electro magnetic switch for controlling the wet heater from burning off if water level is not adequate. Float valve provided to control water level in the boiler tank.
Long lasting SS tubular heaters used as heating element. The stainless steel tins provided to ensure better heat transfer. Hermetically sealed compressor CFC free compressor (134 A gas) coupled with evaporation coil and condensor.
Removable perforated trays provided made of S.S.
Microprocessor based temp and direct RH digital PID controller. Humidity directly measured in % RH by electronic sensor.
10 to 70C, Accuracy +/- 0.5C
40% RH to 90% RH Accuracy +/- 3% RH
As per ICH Guide lines, stability studies to be carried out under the following conditions.
At 25C (+/- 2C) & 60% RH (+/- 5% RH)
Validation ; Validation of the chamber (Heat Mapping) will be done at 8 zones in the chamber using 8 channel scanner (4 works and printout of the result will be provided. For on site validation charges extra.
| hamber Size(cm) | Cu. | Trays | ||
| H | W | D | ||
| 45 | 45 | 45 | 3 | 2 |
| 70 | 50 | 50 | 6 | 3 |
| 90 | 60 | 60 | 12 | 3 |
| Chamber Size(cm) | Cu. | Trays | ||
| H | W | D | ||
| 45 | 45 | 45 | 3 | 2 |
| 71 | 45 | 45 | 6 | 3 |
| 90 | 60 | 60 | 12 | 3 |
| Chamber Size(cm) | Cu. | Trays | ||
| H | W | D | ||
| 45 | 45 | 45 | 3 | 2 |
| 70 | 50 | 50 | 6 | 3 |
| 90 | 60 | 60 | 12 | 3 |
| 125 | 60 | 60 | 16 | 4 |
| Chamber Size(cm) | Cu. | Trays | ||
| H | W | D | ||
| 45 | 45 | 45 | 3 | 2 |
| 70 | 50 | 50 | 6 | 3 |
| 90 | 60 | 60 | 12 | 3 |
| 125 | 60 | 60 | 16 | 4 |
It is used to measure the drying shrinkage of autoclaved portland cement and potential expansive reactivity of Cement aggregate combinations in mortar bars during storage on self-drying.
The instrument consists of chanelled base over which two vertical pillars are fixed. An adjustable cross plate is at the top. A dial gauge, reading to 0.002 mm x 12 mm or 0.01 X 25mm is fixed to the top. The plunger end of the dial Gauge can be located up on a 6.5 mm. dia ball or other reference point cemented in the specimen. On the base there is a similar recessed seating in which can be placed a second ball or reference point in the specimen.
Complete with a stainless steel standardiation bar with insulated grip and with 6.5mm dia ball mounted in the ends.
The unit consists of two movable frames pivoted at one end. The lateral extensometer is fixed to the specimen with the help of tightening screws. The lateral extension is indicated on a dial gauge of 0.002 mm x 12 mm travel. The extension is magnified 2.5 times and the dial gauge readings are to be divided by 2.5 to get the exact readings. A spacer strip is provided to initially set the dial gauge and can be removed after initial setting. Supplied in a wooden carrying case.
We started modestly as a marketing organization and later entered the ever-challenging field of manufacturing. The rich, hard-earned experience as a marketing organization and close interaction with the end users, paved the way for a customer driven, customer focused and customer oriented company.
