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Cement Tensile Testing
Cement Tensile Testing
The double lever tensile testing machine for cement
briquette is available in different ranges. Loading is applied automatically
by lead shots flow in manually operated units and by a traveling poise on
the lever in Electrically operated model. The loading is controlled at the
rate of 226.7kg/minute and measured to 0.05kg. The machines are fitted with
precision gunmetal jaws and are provided with leveling feet..
It is available in two capacities
SCE-1001
ASTM C 109
900kg motorised complete with 15kg lead shot, set of gauge weights to
weigh, 50,100, 150, 200kg.
SCE-1002
IS: 269-1958
500kg complete with 15kg lead shot, set of gauge weights to weigh, 50,100,
150, 200kg.
Strength Of Cement And Mortar
Compressive Strength
The failure loads of mortar cubes can vary
considerably according to the type of cement and the period of curing.
However, a capacity between 50 kN and 500 kN encompasses the majority of
test conditions. A 500 KN Compression Testing Machine is suitable for
testing mortar cubes, cement mortar and pozzolana cubes of 50 mm. For
details see under SCO-1040.
SCE-1003
Flexural Strength
4 kN Flexure strength Testing Machine,
Electrically Operated,
IS: 1727, 4031
For the Transverse test of pozzolana and cement mortar prisms (Rilem
Cembureau test) by single point loading of a 60 mm long prism supported at
100 mm centers. Smaller loads, less than 10 N, can be applied and measured
with an accuracy of 1% in the upper four-fifths of the range.
The load is increased at the rate of 40- 60 N/sec.
Supplied complete with: Proving ring of capacity 4KN and Flexure Test
Attachment.
Gauging Trowel
IS: 4031, IS: 5515
SCE-1004
Gauging Trowel, IS: 5515,
200 mm long blade Weight 210 ± 10 g
SCE-1005
Gauging Trowel, IS: 4031,
150 mm long blade with straight edge. Weight 210 ± 10 g
SCE-1006
Gillmore Needle Apparatus
ASTM C 91, C414, C266, AASHO T154
For determining setting time of hydraulic cement. The apparatus consist of
a base plate with a vertical shaft and two horizontal arms, the lower arm
being adjustable for height. Supplied complete with one initial needle, one
final needle and a base plate.
Replacement Parts
SCE-1006001
Initial Needle 1/12-inch dia. ¼ lb. wt.
SCE-1006002
Final Needle 1/24-inch dia. 1lb.wt.
SCE-1006003
Glass base plate
Jaw Crusher
- Designed to speed-up crushing of aggregates, Ores, Mineral, Coal and
similar materials
- Compact and rugged for laboratory and small production units
- Manganese steel jaws adjustable for 6 mm opening
- Supported with strong steel frame
SCE-1007
Jaw Crusher of 12
SCE-1008
Jaw Crusher of 6
The specification is as follows.
1. Single Toggle Jaw crusher size 4" x 6".
2. Motor 3 hp /3phase/415 volt/50 cycle.
3. Jaws Speed 350 rpm
4. Jaws 10-12 Mn steel.
5. Bearing Bush type
6. Feed size 25 - 30 mm
7. Product Size 6-20 mm
8. Capacity 200 - 250 kg /Hour
SCE-1009
Jolting Apparatus
IS: 10078, 1982
The jolting apparatus consists of a rectangular table, rigidly connected by
two support arms to spindle at a horizontal distance of 800 mm from the
center 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 rpm. A
stroke counter, fitted with micro switch, is provided, which stops the
machine after 60 jolts. Locating pins are provided for mounting the mould
compartments on the table. The mould, surrounded by the hopper, can be
clamped rigidly to the table. Supplied complete with mould and hopper.
Suitable for operation with 230 V, 50 cycles, single phase, AC Supply.
SCE-1009001
Mould for Flexural Prism M. Steel, three
compartments, each of 40.1 x 40 x 160mm
SCE-1009002
Demoulding Apparatus
Laboratory Ball Mill
Laboratory Ball Mill is primarily designed for grinding pigments. The
material is ground at a specific speed by using a specific quantity of
grinding media (steel balls) for a specific period. The equipment is used
for making the ground cement samples in the laboratory. Apart from the
cement industry, it is also used in the paint, plastic, granite and tile
industries
SCE-1010
Laboratory Ball Mill, 5 Kg capacity without
steel balls
SCE-1011
Laboratory Ball Mill, 10 Kg capacity without
steel balls
Optional Extras
SCE-1011001
Steel Ball, 40 mm dia
SCE-1011002
Steel Ball, 40 mm dia
SCE-1011003
Steel Ball, 25 mm dia
SCE-1011004
Steel Ball, 19 mm dia
SCE-1011005
Steel Ball, 12.5 mm dia
Laboratory Cement Autoclave
IS:4031
It consists of a stainless steel cylinder with an
insulated cover, mounted on a sturdy supporting frame, enclosed in a heat
insulated metal housing, attractively finished. The attached control unit
encloses a sensitive pressure regulator and pressure gauge, power switches
and pilot lamps for controlling the electric heating units. Inside Chamber
dimensions: 15 cm dia x 60 cm height, with stainless steel Cylinder (20
kg/cm2 pressure capacity) Suitable for operation on 220 V, 50 Hz, Single
Phase, AC Supply. Supplied complete with Test Bar Holder, Special Rack to
hold specimens above water level in the autoclave and in a vertical position
to expose them in the same manner.
SCE-1012D
Laboratory Cement Autoclave, Digital,
With Electronic Digital Readout for Temperature
SCE-1012001
Autoclave mould: Size: 25 x 25 x 282mm
SCE-1013
Le-Chatelier Apparatus,
IS: 5514, 1727, 2645, 4031, 6932 (Part-9), BS: 890, 915, 1370, 4027,
4226
The soundness of ordinary and rapid hardening portland cement, low heat
portland cement and class-A limes can be determined by an expansion test
using Le-Chatelier moulds
SCE-1014
Le-Chatelier Flask
Used for the determination of specific gravity of hydraulic cement as
specified in IS: 4031
SCE-1015
Le-Chatelier Mould
IS: 5514
It consists of a small split cylinder forming a mould 30 mm internal dia.
and 30 mm high. On either side of the split cylinder, two parallel
indicating arms with pointed ends are attached. The mould is supplied
complete with two glass plates and lead weight.
SCE-1016
Le Chatelier Water Bath for curing 12 moulds
SCE-1017D
Le Chatelier Water Bath for curing 12 moulds,
with Digital indicator & Controller
Sample Preparation
Modern test procedures require specimens of
cements, limes and related materials when formed into mortar, to be cast in
certain standard shapes and sizes for determining the mechanical properties
with a view to have a proper control on the quality of materials used.
Mortar is prepared by mixing 185 g cement, 555 g standard sand and 74 g
water separately for each cube of 70.6 mm. The homogeneous mixing is done
using a mortar mixer and compacted using a vibration machine.
Mortar Mixer
IS: 10890-1984
This apparatus has specially been designed to prepare cement mortar for
strength determination as specified in IS: 4031. It can also be used in
mixing lime with pozzolonic materials for determination of lime reactivity
(as per IS: 1727) and for uniform mixing of soils with additives such as
lime, cement, etc. The stainless steel mixing bowl has a capacity of 4.75
litres. The paddle, also made of stainless steel, can have both planetary
and revolving motion for uniform mixing. It can be electrically driven at
two speeds:
SCE-1018
Mortar Mixer
 |
Low Speed |
Revolution of Paddle (rpm) 140 ± 5 |
Planetary Movement of Paddle (rpm) 62 ± 5 |
|
 |
SCE-1019
Mortar Mixer
 |
High Speed |
Revolution of Paddle (rpm) 280 ± 10 |
Planetary Movement of Paddle (rpm) 125 ± 10 |
|
 |
SCE-1020
Mortar Mixer
 |
High Speed |
Revolution of Paddle (rpm) 280 ± 10 |
Planetary Movement of Paddle (rpm) 125 ± 10 |
Low Speed |
Revolution of Paddle (rpm) 140 ± 5 |
Planetary Movement of Paddle (rpm) 62 ± 5 |
|
 |
CRUSHING AND GRINDING
SCE-1021
Pulveriser
- Designed for grinding materials to produce fine mesh samples.
- Ideal for use in cement and chemical industries
- Self contained grinder with a rotating disc having planetary movement
in vertical plane.
- Reduces about 450g quartz type material to 100 mesh in one minute.
- Suitable for operation with 440 V, three phase, AC supply.
SCE-1022
Vibration Machine
IS: 4031
A specially designed Vibration Machine is used for vibrating the mix in
moulds according to strictly controlled programmer at a frequency of 12,000
± 400 cycles per minute. The Vibrator is mounted over coiled springs
and the vibrations are developed by means of a revolving eccentric shaft.
The center of gravity of the vibrator, including the cube and mould, is
either at the center of the eccentric shaft or within 25 mm below it. The
simple design of the machine facilitates easy assembly and dismantling of
the cube moulds. The machine is suitable for operation on 230 V, 50 Hz, and
single-phase, AC supply. Each machine is supplied with one cube mould.
The following mould can be ordered, as optional extra
Mould M. Steel, for 70.6 cm cube
Note The machine can certified for its frequency by the National
Council of Cement and Building Materials (NCCBM) at Extra Cost.