After exposure, sulfur end caps were cast onto the 2″ dia. × 4″ high compression specimens according to ASTM standards C192 and C617. The DUCRETE TM and concrete cylinders were broken using an Instron testing machine according to ASTM C39-72 which utilizes a spherical bearing block to minimize shear stresses at the end caps.
The unit is an easy-to-use, self-contained machine that will face cylinder ends to ASTM C617 specs. The H-2965 uses a high-quality genuine diamond cutting wheel, which is supplied, to produce an accurate, smooth finish. The rotational speed of the diamond cutting wheel is variable to 6200 RPM, depending on quality of finish desired.
Capping cylinders, according to ASTM C617, is utilized when grinding is not possible. If the concrete cylinder is not prepared with care and attention before breaking, the cylinder will not ...
Grinding wheel. Grinds planeness and parallelism of test cylinder ends in accordance to ASTM standards C31, C39, C-192, C-617, CSA standards A23.1-04, A23.2-04. Planeness accuracy: 0.002" (0.05mm) Grinding time 90 to 120 seconds per end. Adaptor for cylinders 4", 3" & 2" diameter. Selectable advance speed for 4" or 6" cylinders.
When testing concrete cylinder specimens it is essential that the two ends are perfectly flat. This range of equipment allows the ends of the various sizes of concrete cylinders or cores to be capped using the sulphur capping compound. Cylinder cappers Used to assure plane end surfaces perpendicular to the axis of the cylinder during the capping.
It can handle 4" x 8" and 6" x 12" cylinders with equal ease and provide them plane and parallel within ASTM C617 tolerances. The grinder removes material at a rate of 1/32" (0.8mm) per pass, and is capable of quickly handling multiple passes if needed while maintaining its preciseness.
Make sure that you are ready to put the cylinder into the capping fixture quickly if you are working in a cold room! Capped specimens are ready for compression testing in as little as 2 hours, though many sources recommend waiting up to 24 hours for optimum compound strength. Meets ASTM C31, C39, C192, C617, AASHTO T22, T23, T126, T231, EN ...
ASTM C617. Procedures for capping enable concrete cylinders and cores to meet C617's practice requirements for___ and___. Perpendicularity, Planeness ___ can be made of glass, machined metal, polished granite, or diabase. (C617) ... Remove this from the end of cylinders before capping.
Concrete Cylinder End Grinders. H-2962 Cylinder End Grinder, Automatic. This automatic cylinder end grinder quickly grinds specimen ends plane and parallel prior to tests. HC-2979.XX Specimen Grinding Machine. Designed to grind and polish concrete cubes, cylinders, blocks, natural stones, rocks and ceramic materials
Concrete strength grade of 80 MPa or less, single end grinding achieves constant results. Concrete cylinders with double end grinding method gives constant compressive strength values for all strength grades. Grinds planeness and parallelism of test cylinder ends in accordance with ASTM standards C31, C39, C-192, and EN 12390-3,12390-1, 12504-1.
The preparation of concrete cylinder test specimen for compressive strength test: EN 12390-1, 12390-3, ASTM C31, C39, C192, C617; The maximum tolerance on the flatness of the potential load bearing surfaces (the ends of compression test specimens) is 0.002 in. [0.050 mm]
STANDARDS FOR CONCRETE SAMPLES: EN 12390-1, 12390-3, ASTM C31, C39, C192, C617 STANDARDS FOR CORE SAMPLES: EN 12390-1, 12390-3, 12504-1, ASTM C39, C42. Automatic Grinding Machine is quickly becoming the chosen alternative to the traditional rubber or sulphur capping method used by Quality Construction Labs.
Alternatives to Conventional Concrete 340 7.6.1 Self-Consolidating Concrete 341 7.6.2 Flowable Fill 343 7.6.3 Shotcrete 344 7.6.4 Lightweight Concrete 346 7.6.5 Heavyweight Concrete 346 7.6.6 High-Strength Concrete 348 7.6.7 Shrinkage-Compensating Concrete 348 7.6.8 Polymers and Concrete 349 7.6.9 Fiber-Reinforced Concrete 349 7.6.10 Roller ...
an ideal vehicle for the acquisition of the equipment. Purchase Price $72,500 Lease Term 60 months Rate Factor.02587 Monthly Payment (rental) $1,875.58 End of Lease Option Fair Market Value Advance Payments (2) $3,751.15 The lease structure allows Sample Company, Inc., the means to acquire the
Cylinder End Grinder - Capping - Concrete. Cylinder End Grinder. The Cylinder End Grinder grinds the faces of concrete cylinders plane and parallel to within ASTM C617, usually with just one pass of the diamond wheel. Compression testing can commence immediately after grinding without the use of capping materials.
The preparation of concrete cylinder test specimen for compressive strength test EN 12390-1, 12390-3, ASTM C31, C39, C192, C617 The maximum tolerance on the flatness of the potential load bearing surfaces (the ends of compression test specimens) is 0.002 in. [0.050 mm] The preparation of drilled concrete cores specimen for compressive strength test
CHAPTER IV Concrete. Cylinder Capping Equipment. Standards UNE EN 12390-3, UNE 7240, 83303; ASTM C617; NF P18-416; BS 1881; AASHTO T23, T126 H0165 Electric vessel for melting sulphur Rectangular shape with a capacity for 10 L. …
Grinders Cordless & Electric Concrete & Metal . Grinders Grinders offer professional concrete and metalworking users a wide range of choices. 4 1/2" Small Angle Grinders, 5" Medium Angle Grinders, 9" Large Angle Sander/Grinders and Straight and Die Grinders are designed for rigorous use and long life.
Automatic Cylinder End Grinder. The automatic cylinder end grinder provides fast grinding of cylinder specimen ends to obtain plane and parallel surfaces. The machine has selectable advance grinding time functionality by user from 50 to 400 seconds. Optimum grinding time per end of all type specimens is 90 to 120 seconds.
C09.21 on Lightweight Aggregates and Concrete. Current edition approved July 15, 2007. Published August 2007. Originally approved in 1962. Last previous edition approved in 1999 as C495 – 99a. DOI: 10.1520/C0495-07. 2 For referenced ASTM standards, visit the ASTM website,, or contact ASTM Customer Service at service@astm.
Cylinder Capping Frame Standards: ASTM C617, EN 12390-3 AASHTO T23 The Cylinder Capping Frame is used to assure plane end surfaces perpendicular to the axis of the cylinder during the capping.
Concrete Cylinder End Grinding Machine: 2965 ... The unit is an easy-to-use, self-contained machine that will face cylinder ends to ASTM C617 specs. The H-2965 uses a high-quality genuine diamond cutting wheel, which is supplied, to produce an accurate, smooth finish. The rotational speed of the diamond cutting wheel is variable to 6200 RPM ...
Sulfur capping compound is the traditional method of end preparation noted in ASTM C617/AASHTO T 231. A mixture of sulfur, fly ash, and mineral filler is heated in a melting pot until flowable. The hot material is poured into a capping mold, and the concrete cylinder end is placed in the molten material. Once cooled, the cap will be level ...
Cylinder End Grinder The Cylinder End Grinder grinds the faces of concrete cylinders plane and parallel to within ASTM C617, usually with just one pass of the diamond wheel. Compression testing can commence immediately after grinding without the use of capping materials. The machine's small footprint makes it perfect for most labs.
Capping Concrete Specimens For Compression Testing. By KAUSHAL KISHORE Materials Engineer, Roorkee. CAPPING THE CYLINDERS It is required that the cylinders ends must be plane within 0.050 mm. The most common way of achieving this planeness requirement is to cap the ends of the cylinder as per ASTM C617 6 with suitable materials. Three different ...
Humboldt provides a complete selection of concrete testing equipment for fresh and in-place concrete structures in accordance with ASTM, AASHTO and other standards. We feature concrete air meters, compression machines, concrete test hammers, corrosion testing, ultrasonic tests, testing for moisture in cured slabs, concrete cylinder testing, and all related …
What methods of capping are recommended for compression specimens? Q. What methods of capping are recommended for compression specimens? A. ASTM standards that control capping, C39, C617, and C1231, have all been revised to better address end preparation, especially for high-strength concretes.Capping with sulfur mortar is widely used.
Concrete Cylinder End Grinder Demo ASTM C617 - YouTube . The Marui Concrete End Grinder Demonstrated by Hoskin Scientific. Hoskin Scientific is the exclusive distributor of Marui Grinders in North America.