Evaluation of chloride permeability characteristics of concrete. The test is performed to monitor the amount of electrical current passing through concrete cores or cylinders. A potential difference is maintained across the ends of the specimen, one of which is the negative end and is immersed in a sodium chloride solution, the other (positive end) in a sodium hydroxide solution. The total charge passed, in Coulombs, that is related to the resistance of the specimen to chloride ion penetration, is measured.
Suitable for testing repairs of concrete structures where the bond strength between two layers of different type of surface coatings like cement plaster, lime, wall plaster, etc. on its support. Digital model suitable for measurements up to 16 kN assuring a wide working range ideal for a vast number of materials and applications.
Cross-hole ultrasonic test method is used to check the continuity of deep foundations, diaphragm walls or stay plates by detecting cracks or faults along the shaft and the tip. The homogeneity and quality of concrete are measured and defects are located accurately, even at the top of a pile. Sonic logging is a continuous measurement of sound velocity along the pile between an emitting sensor and a receiving sensor lowered down two or more tubes held together with reinforcements. The tubes are inserted before the concrete is poured and must reach the base of the pile.
Different models available, from the standard one to the more sophisticated digital model. Non-destructive testing of the surface of hardened concrete in order to evaluate the strength in various parts of structure. The digital hammer, which is battery operated, can be easily connected to a PC or serial printer via the RS 232 port. A large permanent memory can store up to 5000 results.
Designed for extreme ease of operation for the measurement of the depth of cover to steel reinforcement in concrete. Also incorporated are bar detection and bar sizing facilities plus a range of invaluable functions for use in reinforced concrete condition surveys and check measurement.
In-situ evaluation of stress, structural inspection, structural monitoring the following range of instruments can measure geometric or physical parameters such as displacement and deformation. The complexity of the instrument or system selected can be varied according to the level of sophistication required. This may cover the measurement of a single parameter such as crack width, up to a multiple structural monitoring system.
Corrosion of steel is an electrochemical process involving anodic (corroding) and cathodic (passive) areas of the metal. By measuring concrete surface electrical potentials relative to a standard reference electrode on a predetermined grid, the presence and location of corrosion and its probable future performance may be assessed, by regular measurements, to monitor the behaviour of new and relatively new structures and thus minimise maintenance.
This apparatus incorporates two conical hoppers having a hinged trap door attached to stand frame, allowing concrete sample to flow freely into a cylindrical mould. Epoxy-coated paint finish.
Coring specimen in concrete structure by electrical driven motor portable unit. Models available for 100mm diameter and above, complete with core crown and adaptors.
A suitable electronic balance for specific gravity determination of fresh hardened concrete and aggregates. A purpose built robust frame design to support a suitable electronic balance for specific gravity determination of fresh & harden concrete and aggregates.
CBR field and laboratory test set is used to perform CBR in-situ test on road construction which enables the bearing capacity of soil to be determined quickly and efficiently for prompt result. The CRB in-situ jack assembly can also be mounted on a simple manual version of conversion frame for measuring CBR values in the laboratory.
Automatic compactors allow uniform and correct compaction of Proctor and CBR samples. All moving parts, the hammer-lifting device and the rotating mould table are fitted with safety guards that, if open, stop the machine automatically for operator safety. The compactor can be used with all 4" and 6" moulds.
This Method is suitable for soil containing up to 10% of particles retained on a 37.5mm test sieve. Apparatus consist of End-over-End shakes & gas jar.
Plastic limit test set comprises Plastic steel rod, Stainless steel rod, Mixing Dish, Spatula and Moisture tin
Probes
Mackintosh Probe JKR Probe The probe set is primarily useful and ideal for initial site investigation work in remote areas. This particular method is used in conjunction with control bore holes which considerable area can be investigated efficiently and cost effectively.
Proctors Equipments
Proctors rammers, moulds & extruders Used in sample preparation for soil compaction heavy duty construction, comforming to respective standards.
Proctors Equipments
Proctor penetrometer Establishing the moisture-penetration resistance relationship of fine-grained soil.
Used in sample preparation for soil compaction heavy duty construction, comforming to respective standards. Used in sample preparation for soil compaction heavy duty construction, comforming to respective standards.
Determination of the consolidated drained shear strength of a soil material in direct shear. Two different models of standard shear strength machines are available: electromechanical and digital, plus the pneumatic automatic model in which the application of the vertical load is actuated by an advanced pneumatic system. Motorised direct residual shear machine complete with test timer.
Large pyknometer Used for the determination of specific gravity of sands and fine aggregate. It consists of a glass jar 1 litre capacity, complete with metal cone.
Used for unconfined compressive strength of adhensive soil in undisturbed and remoulded conditions, using either strain or stress controlled application of the test load.
Measurements and control of pressures including earth pressure, tangential and radial stresses in shotcrete tunnel linings as used with the Shortcrete style style of tunnelling.
Curing of concrete test specimen standard curing tank fabricated from Zinc galvanized metal sheet. Options include fitting of re-circulating water pump and accelerated heating system.
A general purpose laboratory apparatus used for testing soil, aggregates, concrete and asphalt samples. Confoms to EN, ASTM and BS stardard. Thermostatic PID control and digital display.
Clamped boss load rings are available in the range 1kN to 50kN capacity. All clamped boss load rings are calibrated in kN and supplied with calibration chart with conversion for kgf and lbf has accuracy within 1% of indicated load.
Coring specimen in concrete structure and road pavement, by electrical driven motor portable unit. Models available for 100mm diameter to 450mm diameter.
Ideal for curing of marshall samples, structured in resistant stainless steel body, epoxy coated. Supplied with digital controller and immersion heater with stirrer and bath cover.
The test determines the flow of index as an arithmetic mean of the diameter of the specimen after working on the flow table. The test determines the flow of index as an arithmetic mean of the diameter of the specimen after working on the flow table.
Featuring a range of heavy-duty drum and pan mixers for uniform mixing of fresh concrete for laboratory test samples. Featuring a range of heavy-duty drum and pan mixers for uniform mixing of fresh concrete for laboratory test samples.
Filling the slump cone with freshly mixed concrete which is tamped with a steel rod in three layers.The cone removed, and the sample of the is immediately measured to gauge the workability of concrete.
A range of vibrating tables for achieving design mix compaction requirements of laboratory concrete specimen. A range of vibrating tables for achieving design mix compaction requirements of laboratory concrete specimen.
Used for routine viscosity determinations on almost every drilling rig. Supplied completed with plastic measuring cup 1 litre capacity. Used for routine viscosity determinations on almost every drilling rig. Supplied completed with plastic measuring cup 1 litre capacity.
Manufactured to ASTM and BS standard, for determination of moisture content at which clay soil pass from a plastic to liquid state. Manufactured to ASTM and BS standard, for determination of moisture content at which clay soil pass from a plastic to liquid state.
The original Ashworth SPEEDY moisture tester is a well recognized test method for the determination of content in various materials such as sand, fine aggregates and soil.
The probe set is primarily useful and ideal for initial site investigation work in remote areas. This particular method is used in conjunction with control bore holes which considerable area can be investigated efficiently and cost effectively.
This instrument can be provided with a wide range of vane sizes, although as standard, it is sold with the 12.7 mm square vane and a set of four calibrated springs. A motorizing unit is also available.
Used for determination of water levels in bore holes, wells and other open ground structures, the dipmeter is drum mounted with visual and sonic indicators. Measurement with conduction tape in graduated centimeters.
Inclinometers & casings for measurement of continuous profile verticle movements, lateral displacement of soil, rock & man-made structures. Casing is made of ABS plastic.
Measurement and control of water pressure in soil and rock, including: contruction control and stability, monitoring of embankments, dams, reservoirs and shallow underground works, stability investigations of natural and cut slopes, control of de-watering and drainage operations, hydrological investigations and water supply, pollution and environmental studies, uplift pressure and hydraulic gradients indam foundations and abutments, in-situ measuments for permeability changes and evolution.
Coring specimen in concrete structure and road pavement, by electrical driven motor portable unit. Models available for 100mm diameter and 200mm diameter. Diamond core bits are a three piece modular, consists of a core adaptor, core tube and core bit (100 or 150mm )
This test is performed by spreading a measured volume of fine sand (ASTM) or glass spheres (EN) into a circular patch on the road surface and filling the surface depressions to the level of the peaks.
Provides a simple method for the accurate determination of mud density. Ideal for field use. Provides a simple method for the accurate determination of mud density. Ideal for field use.
Used to verify degree of compaction by removing and weighing a part of compacted soil and replacing it woth a known volume of sand. Two version available, BS and ASTM.