Blaine Air Permeability Test App.
The fineness of cement has a significant effect in its physical properties when used in concrete. Generally the finer the cement powder, the more rapid the concrete will set, as there is an increase in its surface area. The measure of fineness is usually undertaken by sieving, and the result assessed against the cement standard for compliance. The Blaine air permeability apparatus is used to determine the fineness of Portland cement in terms of the specific surface expressed as total surface area in square centimeters per gram of cement. The Blaine apparatus draws a defined volume of air through a prepared bed of cement of defined porosity. |
 |
Cement Auto Clave
After it has set, cement must not undergo any appreciable expansion, which could disrupt a mortar or concrete. This property of soundness is tested by subjecting the set cement to boiling in water or to high-pressure steam. Unsoundness can arise from the presence in the cement of too much free magnesia or hard-burned free lime. This method covers determination of the autoclave expansion of Portland cement by means of a test of neat cement paste specimens, 25.4 X 25.4 X 285.8mm, which are moist cured for 24 hours +/- 1-1/2 hours and then exposed to action of steam under specified pressure for 3 hours. The rate at which pressure is increased in the beginning the test and released in the test are specified. Linear expansion is measured by micrometer comparator. |
 |
Compression Testing Machine-500KN
The machine embodies an hydraulic system designed to meet the requirements of Indian standards Specification 516-1959 for compression tests on cement mortar cubes up to 7.06 cms. |
 |
Curing Compound Mould
The mould is as per ASTM-C-156-1980. The mould is made of stainless steel and it is water tight. The mould is rigidly constructed to prevent distoration and it is thoroughly clean. The interior faces of the mould is plane surface. The mould is 150mm X 300mm at the top, 143 x 295 mm at bottom, and 50 mm depth measured on the inside. The mould is flat rim at the top on all sides approximately 6mm in width. A wooden float has a dimension of 75 mm X 280 mm X 20 mm thick is also be provided. The packing rod to be supplied with mould is made of non-absorptant, non-abrasive, non-brittle rubber compound material. The packing rod is 150mm long and have cross sectional dimensions of 25mm X 12 mm with tamping face the form of a blunt torpedo. S.S. Mould 300 x 150 x 50 mm. |
 |
Flow Table
The consistency and workability of concrete is a very important factor and is strictly connected to the water/cement ratio, to the effect of admixtures and finally to the strength and quality of concrete. Suitable for concrete mixes of high and very high workability. To perform this test, a sample is placed on a metal surface which is then raised and dropped through a known height. |
 |
Gauging Trowel
Pointed type with approx. 210 gm weight. Fitted with best quality wooden handle. |
 |
Heat of Hydration of Cement
The chemical reaction that takes place between cement when mixed with water is exothermic. The intensity of this reaction is measured in this test. The value of heat of hydration can be important where the cement maybe incorporated into concrete which will be poured in large volumes. In such cases there can be a considerable build up of heat as the reaction takes place, which, if excessive, could caused cracking in the structure. Heat of hydration of cement is expressed in calories per gram. |
 |
Humidifier
EIE-2602, Humidifier is based on the rotating disc splash plate principle. Produces super fine particles which become part of the atmosphere, reaching every corner of the room, resulting cool mist, which does not condense when obstructed and remains suspended in the air, thus achieving humidity up to 95 % RH in enclosed areas. This unit is capable of atomizing up to 3 ltr of water in an hour at full evaporation in the driest possible ambient conditions. An optional arrangement can also be provided to control the humidity which automatically cuts off and put on the unit as required (at an extra cost) |
 |
Humidity Oven
EIE-106, FOR CURING OF CEMENT MORTAR MOULDS AT 27 DEGC AND 95% HUMIDITY. 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. Chamber Size : 70 X 50 X 50 cm., Cu. ft. : 6, Trays : 3 |
 |
Jolting Machine
The jolting apparatus consists of rectangular table rigidly connected by two support arms to a spindle at a horizontal distance of 800 mm from the centre of the table. The table can be raised and allowed to fall freely by a cam which is connected to a motor. The cam rotates at a rate of 60 rev/min. A stroke counter fitted with micro-switch is provided which stops the machine after 60 jolts. Locating pins are provided for mounting the moulds compartments on the table. The mould surrounded by the hopper can be clamped rigidly to the table. Supplied complete with mould and hopper operation on 230 Volts 50 Hz AC supply. |
 |
Le Chatlier Mould
The main purpose of the soundness test is to assess the possible risk of late expansion due to hydration of uncombined calcium oxide and/or magnesium oxide. The test uses apparatus known as Le Chatlier apparatus, which magnifies any expansion during heating to a value that can be measured. |
 |
Length Comparator
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. |
 |
Mortar Mixer
It is used for mixing cement pastes, mortars and pozzolanas. The mixer consists of an epicyclic type stainless steel paddle imparting both planetary and revolving motion. Mixer have two speeds. Mixer blade has low speed of 140 + 5 rpm and medium speed of 285 + 10 rpm, while it also has a planetary movement of 62 + 5 rpm in low range and planetary movement of 125 + 10 rpm in medium range. Stainless steel bowl fitted with handle, fitted with lid made of non-absorbing material and not attacked by cement, masonry cement, cement pozzolana mixture or lime pozzolana mixture. The scraper consists of semi rigid rubber blade attached to a handle about 150 mm long. The blade about 75 mm long, 50 mm wide and tapered to a thin edge. Suitable for operation on 230 Volts, single phase. |
 |
Mortar Penetrometer
It is used for finding out the rate of hardening of mortars sieved from concrete mixtures, by means of penetration needles of different cross-sectional areas. The instrument consists of a barrel housing a calibrated spring and a stem graduated from 0-70 kg x 1 kg. Six interchangeable penetration needles of areas 645, 323, 65, 32 and 16 mm sq. are provided. The penetration resistance is measured by the force exerted to penetrate the mortar by 25 mm and is indicated by a sliding ring on the stem, which is graduated. Needle shanks are marked at every 12.5 mm. Complete in a wooden carrying case. |
 |
Pulverizer Lab Type
Laboratoty Pulverizer is a disc type grinder, designed to grind virtually any material to produce a fine mesh sample in one operation. It is a self contained grinder, with a rotary disc, having a planetary movement in a vertical plane. This feature gives added life to the moving parts and produces a sample of uniform fineness. Grinding is done between two discs, one of which is stationary and the other revolving eccentrically at high speed. The discs are made from heat treated mechanite metal. With the help of a convenient hand wheel, the six of the final product can be adjusted. This can be done, even while the machine is in operation. A self locking device holds the hinged grinding chamber in place and affords easy and quick access to it, for removal of ground samples & for cleaning. The Pulverizer has a capacity of reducing about half a kilogram of Quartz type sample to 100 mesh in about minute. The Pulverizer is supplied complete with a 3 H.P. Motor, a starter, "V" Belt pulley drive and mounting wired for 440 Volts, 3 phase A.C. 50 Hz. Disc Diameter : 175 mm. Maximum feed Size : 6 mm Yield : 250 gms/min size of finished product. : 100 mesh |
 |
Reflectance Meter
With 45° Diffuse reflectance head with Tristimulus green filter for whiteness of sample with head for brightness measurement or for opacity measurement. |
 |
Standard Spatula
It shall be made of stainless steel with wooden handle.
Size of blade - 20 cm long.
Width of blade - 2.5 cm appropriate thickness. |
 |
Tensile (Briquette) Testing Machine
Manually operated 0-500 Kg. Complete with one briquette mould and set of weights to weigh 50, 100, 150 and 200 kg. without lead shot.
Motorised Operated 0-900 Kg. The instrument employs of friction free, accurate, double, lever system, the load being applied by means sliding weight on the top lever The capacity of the unit is 900 kgs. After fixing the briquette in the jaws, the machine is swithched on. The sliding weights slides over the calibrated lever thus applying tension to the specimen. A micron-Switch fitted instantly stops the machine on failure of the briquette and on failure the tensile load is accurately read to 0.5 Kg by means of a marker provided on the sliding weight. The machine can be made operationable for subsequent test only after bringing the sliding the weight to its zero position. Suitable for operation on 230 volts, 50 cycles, single phase, A.C. supply. Complete with one brass briquette mould and one base plate. |
 Testing Machine.jpg) |
Vicat Needle App.
Used to determine the amount of water required to produce a cement paste of standard consistency and the setting time. The time it takes for a cement to stiffen to a standard value after addition of water is commonly known as the set time. The test involves mixing cement with water and then measuring its resistance to penetration of a standard probe at varying intervals of time, until a certain value is reached. |
 |
Compaction Factor App.
The compaction factor is defined as the ratio of the mass of the concrete compacted in the compaction factor apparatus to the mass of the fully compacted concrete. It involves dropping a volume of concrete from one hopper to another and measuring the volume of concrete in the final hopper to that of a fully compacted volume. The results of the compaction factor test can be correlated to slump, although the relationship is not linear. This test is difficult to run in the field and is not practical for large aggregates (over 1 inch) Compared to the slump test, the apparatus is bulky and a balance is required to perform measurements. |
 |
Compression Testing Machine Digital
The digital compression testing machine has been designed to meet the need for a simple, economic and reliable means to test concrete for its compressive strength. The design expressive of simplicity, both of construction and operation, makes the machine easy to use and maintain. The unit is compact, making it useful for site and Laboratory applications. The digital machines are provided with a pace rate controller, to enable maintain a constant of loading. |
 |
Compress meter
For 150mm dia x 300mm high specimen. Consists of two frames for clamping to by means of five tightening screw with a hardened end tappered end. Two spacer hold the two frames in position. A pivot rod rests on pivot screws. A dial gauge, fixed to a bracket fitted to the top frame is used for taking deformation measurement. Supplied complete with dial gauge 0.002mm x 5mm in a nice wooden carrying case. |
|
Concrete Penetrometer
This test is used to determine the elapsed time between batching of a concrete sample and when it is deemed by standard methods to have set. The method involves measuring the penetration resistance of a test sample, which has had coarse particles removed at periodic intervals. It is particularly useful, in determining the effect on setting time of admixtures in the concrete, where these may have been introduced specifically to increase the setting time. |
 |
Concrete Permeability App.
A concrete structure is considered to be of adequate durability if it performs in accordance with its intended level of functionality and serviceability over an expected or predicted life cycle. Concrete durability depends largely on the ease (or difficulty) with which fluids (water, carbon dioxide, oxygen) in the form of liquid or gas can migrate through the hardened concrete mass. Concrete is a porous material. Therefore, moisture movement can occur by flow, diffusion, or sorption. We are concerned with all three, but generally the overall potential for moisture in concrete by these three modes is referred to as its permeability. |
 |
Concrete Test Hammer
Often, existing concrete structures will need to be examined and tested to ensure the concrete remains of adequate strength and durability. Rebound hammer surveys can be conducted to provide a rough estimate of concrete strength, where it is not possible to determine this by more accurate means such as core extraction and testing. The test involves using a special rebound hammer, which measures the recoil of a piston against the concrete surface when a standard force is applied. This recoil can then be correlated approximately to concrete strength. |
 |
Concrete Thermometer
Temperature of concrete at the time of placement is important to control and to avoid many possible difficulties. In hot climates, it is important to measure the temperature of the fresh concrete to ensure it is not too hot, which could cause flash setting and rapidly reducing workability. Measurements are generally taken at the point of placement. |
 |
Cylindrical Mould
-> 10cm x 20cm Made of Cast Iron – with base plate
-> 15cm x 30cm Made of Cast Iron - with base plate |
 |
Extensometer
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. |
 |
Hudraulic Jack
Hydraulic Jacks are of multipurpose utility i.e. application of loads while engaged in field investigation, determination of load carrying capacity of piles in the field, tensioning of wires in pre-cast structures, loading of members of any structures for deformation characteristics. For applying loads for various test in field or laboratory. Hydraulic Jack hand operated with separate pumping units. These jacks are portable available in various capacities. The pumping unit is connected to the hydraulic jack by means of a flexible connecting pipe 2 meter long. The jack is fitted with lifting handles for easy transportation. The approximate lift of the ram is 90 to 120 mm. The pumping unit is a single plunger type with detachable handle. The unit is fixed on a channeled base which is fitted with lifting handles. A pressure release valve is provided on the pumping unit. The load is indicated on a 15 cm dial hydraulic pressure gauge of appropriate capacity which can be detached from the pump when not in use. The least count of the calibrated dial will be according to the capacity of the gauge (Normally 100 divisions for full capacity). Lift of ram - 150 mm. |
 |
Tile Abrasion Tester
The tile sample is pressed under a specified load against a grinding path strewn evenly with an abrasive powder revolving at the rate of 30 + 1 r.p.m. At the end of 100 revolutions of the disc the second parallel side of the tile is subjected to wear for an equal number of revolutions of the disc. The wear of tile is measured using a thickness gauge. The Abrasion testing machine consists of a replaceable grinding path fitting on to a disc rotating its vertical axis. The rotating disc and grinding path are enclosed by a circular tray. A bracket holds the specimen. The loading is by a counter balanced lever. A funnel is provided to facilitate charging the grinding path with abrasive powder. Supplied complete with automatic preset revolution counter and one 7.5 kg weight but without abrasive powder and thickness gauge. Suitable for operation 230 V, single phase, Ac supply. |
 |
Tile Flexural Tile Testing
For Cement Concrete Flooring Tiles : Capacity 200 kg. for cement concrete flooring tiles. The specifications are similar to the above machine, but for the bearing rollers of 25 mm dia and spans of 150, 200 and 250 mm. The load is applied at the rate of 200 kg/min/meter. Without lead shots. |
 |
Vee Bee Consistometer
The Veebe consistometer measures the remolding ability of concrete under vibration. The test results reflect the amount of energy required to remold a quantity of concrete under given vibration conditions. The Veebe consistometer is applicable to concrete with slumps less than 2 inches. |
 |
Vibrating Table
The Vibrating Table produces better concrete Moulds and cylinders by removing entrapped air. It distribute concrete evenly inside the moulds and nearly eliminate the problems of bug holes and air bubbles. |
 |
Volume Change App.
RELEVANT STANDARD: ASTM C-499. |
 |
Cube Mould1
Cubes of fresh concrete are made to test a variety of properties on the eventually cured and hardened concrete. Fresh concrete is subjected to a standard compaction regime in the cube mould and is then normally initially cured under specific laboratory conditions. The moulds are manufactured, subject to tight dimensional, hardness, square ness and surface finish requirements. |
 |
Compression Testing Machine Channel
Compression Testing Machine 1000KN (100 Tons) Capacity (Economy Channel Model) Hand Operated fitted with 15 cm dia load gauge. Designed for testing of Cement, Concrete Moulds of Various sizes 15cm x 15cm x cubes, 10cm x 10cm x cubes, 7.06 cm x 7.06 cm cubes, 15cm x 30cm cylindrical mould, bricks can also be tested by the help of adjustable hand wheel. |
 |
Concrete Mixer - Lab Type
A concrete mixer is a device that homogeneously combines cement, aggregate such as sand or gravel, and water to form concrete. The mixer uses a revolving drum to mix the components. Uniform and thoroughly mixed batches can be produced in field or Laboratory. Inevitable for Mix design formulation. |
 |
Flexural Testing Machine
Although generally not such an important property of concrete than compressive strength, tensile strength values are often important to know when the concrete used free of reinforcement and may be subjected to some tensile force. The test method essentially involves applying a load at the centre of a beam of concrete supported at its ends. The load required to break the specimen is then recorded. |
 |
Slump Test App.
The oldest, most widely used test for determining workability. This test is used to determine the workability of fresh concrete, which would normally be undertaken at the point of delivery to ensure the concrete, is of adequate consistency for placement. The test is applicable to concrete of medium workability. The device is a hollow cone-shaped mould. The mold is filled in three layers of each volume. Each layer is rodded with a 16mm steel rod 25 times. The mould is then lifted away and the change in the height of the concrete is measured against the mould. The slump test is a measure of the resistance of concrete to flow under it own weight. |
 |
Vibrating Machine
Concrete moulds are easily cast by using a tamping bar or a vibrating table. However air tapped in cement mortar paste can not be thus removed while casting cement mortar moulds. Easy method is to impart greater vibration of lesser amplitude to the mould while casting. This is achieved in a vibrating machine. Vibration machine is used for the preparation of mortar cubes for the determination of compression strength of ordinary and rapid hardening Portland cement, low heat Portland cement, Portland blast furnace cement and high alumina cements. |
 |
Compression Testing Machine Elec. Oper
This test is used to determine the compressive strength of a concrete cube, which has usually been made from fresh concrete cast in a standard test mould. The value of compressive strength can then be used to assess whether the batch that the concrete cube represents meets the required compressive strength. Following cube manufacture and curing, which should both be closely controlled, the cube is crushed at a stated constant speed until it can sustain no further increase in load. The strength is then derived by calculation using the maximum load and cube dimensions. |
 |
Compression Testing Machine H.O.
This machine is quite useful on field Laboratories or mobile testing laboratories or Vans which frequently change site or location. It is particularly useful where constant and consistent Electric power is not available. The load is applied manually and observed on a Pressure gauge. The Pressure Gauge has maximum load indicator which stand still even after the specimen under test crushes and has to be set to zero manually. |
 |
Accelerated Curing Tank
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. |
 |
Air Enterainment Meter
Air content of fresh concrete is normally measured, by the use of a special air meter, to assess whether the concrete contains the required amount of air. This would be measured when air’s entrapment or entrainment is required by the concrete design. The method uses the principle of replacing the air in a known volume of concrete with water, the volume of which can then be measured. |
 |
Ball Mill
Consist of a drum made of welded steel having an inside diameter of 300mm x 300mm long. Supported on heavy duty bearings. A reduction gear driven by a motor rotates the ball mill at 28-30 PM. Supplied complete with 12-19mm dia steel balls and revolution Counter. |
 |
