LAB. EQUIPMENTS

ZI - 1001 CEMENT SAMPLER IS : 7535 - 1986.

This is a brass tube approximately 53 cm long and 2.8 cm I.D. with a wooden handle.
Total lenght approximately 73 cm. The tube has the sharp angular edge which conventiently pierces cement bags. An air hole of approximately 3 mm dia is drilled on the tube near handle. Total sample collected at one time is 300 cm 3 approximatedly.

ZI - 1002 BLAINE'S AIR PERMEABILITY APPARATUS.
IS : 4031, 5516, 1727 & 4828, ASTM C-204, BS : 4359 Part II.

The apparatus is used for determining the fineness of cement in terms of specific surface expressed as total surface centimeters per gram of cement. This is a variable flow type air permeameter.
Specifications : The apparatus consists one each of permeability cell 12.5 mm
Manometer 'U' type mounted on stand with a buitl in a stop cock, Perforated disc, Plunger Rubber stopper, Rubber tube 30 cm long. Packet of 12 filter paper disc and a bottle of 100 cc dibutyiphthalate liquid.
Spares and Accessories : Punch to cut filter paper disc. Non-perforated disc.
Suction bulb.


 

ZI-1003 LEA AND NURSE AIR PERMEABILITY APPARATUS
IS : 5536, 8425, BS : 12, 1370, 146 & 915.

The method and results obtained from this apparatus depend upon the rate at which air flows under a given pressure gradient through a bed of powder of known density and viods content, in order to determine the surface area of the individual particles.
Specifications : The complete equipment comprises of one Air Permeability Cell Lea and Nurse type for areas 500 to 10000 sq.cm/gm. complete with perfotated plate one capillary tube, one plunger for compaction of sample and a wooden case.
Accessories : Air source, comprising one pressure chamber fitted with a valve, regulator, connecting tube, a toot pump and two drying towers. Manometer liquid in 500 ml bottles.

ZI-1004 AIR PERMEABILITY APPARATUS (RIGDEN TYPE)
IS : 8425, BS : 4352 Part II, BS : 12, 146, 915, 1370, 4027, 4246 & 4248.

Comprises one air permeability cell for range 500 to 10000 sq.cm/gm. The cell is complete with a perforated disc and a compacting plunger. The instrument is supplied with 'U' Tube manometer having an isolation tap assembly and a suction bulb., This apparatus is mounted in a wooden cabinet.

ZI-1005 VICAT NEEDLE APPARATUS
IS : 4031, 2645, 2542 (Part-i), 1727, 5513 & 712. BS : 12, 146, 915, 1370, 4027, 4246, 4248
AASHO - T 129, E 131.

This instrument is used for determining the normal consistency and setting times of cement and 'A' Class limes.
Specifications : The apparatus consists of a metallic frame bearing a freely mocable rod with a cap at top, one vicat mould, split type and glass plate and one set of needles one each intitilal needle, final needle and consistency plunger.

ZI-1006 VICAT NEEDLE APPARATUS WITH DASHPOT

Same as above but in addtion is fitted with a dash pot which facillitates gentle lovering of the needles.
Accessories : Mild steel base plate 5 inches x 5 inches. Fulcrum muld, brass, 70 mm I.D. base dia x 60 mm I.D. top dia., 40 mm height.

Note : 1) Normally set of needles and mould which meet IS requirements as per IS.5513 are supplied. While ordering please specifty the specifications code of the instrument required.
2) Vicat needle apparatus for determining consistency of Hydraulic cement, gypsum plaster, Time etc. as per ASTM C 187 - 58 : C 191 - 58 : C 472 - 62 : C 110 - 58, IS 2542 (Part - i) can also be supplied.

ZI-1007 LE CHATELIER MOULD
IS : 269, 712, 5514, 1727, 2645, 4031, 6932 (Part IX)
BS : 890, 915, 1370, 4027, 4226 & 4248.

It is used for the determination of soundness by expansion method of ordinary and rapid hardening portland cement, low heat portland cement and class A lines.
Specifications : It consists of a small split cylinder forming a mould. On either side of the split cylinder, two parallel indicating arms with pointed ends with pointed ends are attached. Supplied complete with two glass plates and a lead weight.

ZI-1008 RING MOULD IS : 712 - 1956.

Consists of mould 10 cm. dia x 0.5 cm. deep and a glass base plate.