ASTM C1019 PDF

Download Now Artificial intelligence AI has astm c become a field in which research is proceeding at a feverish pace. It is the responsibility of the user of this standard to establish appropriate safety and v practices and determine the applicability of regulatory limitations prior to use. Sampling and astm c for compressive strength of any cementitious material should be done to check the mix design, not the in-place condition. Tx, Structural Eng in Florida. Link to Active This link will always route to the current Active version of the standard.

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Excess water must be removed from grout specimens in order to provide compressive strength test results more nearly indicative of the grout strength in the wall.

In this test method, molds are made from masonry units having the same absorption and moisture content characteristics as those being used in the construction.

N OTE 2—Test results of grout specimens taken from a wall should not be compared to test results obtained with this test method. Apparatus 4.

The rod shall be a minimum length of 12 in. N OTE 3—Nonabsorbent blocks may be of plastic, wood, or other nonabsorbent material. No further reproductions authorized. In order to prevent this from occurring, new wooden blocks shall be soaked in limewater for 24 h, sealed with varnish or wax, or covered with an impermeable material prior to use.

Soak in limewater for 24 h, seal with varnish or wax, or cover with an impermeable material prior to use. A nonabsor- bant material of equivalent stiffness to the plywood is permit- ted. Test Specimens 5. Grout Specimen Molds 6.

N OTE 5—The location of specimen construction should be protected and as free from perceptible vibration as possible. If the grout is placed between two different types of masonry units, both types shall be used to construct the mold. The surface of the unit in contact with the grout specimen shall not have been previously used to mold specimens.

Place nonabsorbent blocks, cut to proper size and of the proper thickness or quantity, at the bottom of the space to achieve the necessary height of specimen. See Fig. New lining material shall be used for each specimen.

N OTE 6—The lining, such as paper towel, is used to aid in stripping the grout specimen from the mold. Proper installation of the lining prevents irregularly sized specimens and varying test results. Such approval shall be based on comparative testing of grout specimens constructed from molds as described in 6. Approval shall be limited to a single specimen shape, method of forming, masonry units used, and grout mix.

A conversion factor based on comparative testing of a minimum of ten pairs of specimens shall be used to modify results from alternative methods. N OTE 7—Other methods of obtaining grout specimens and specimens of different geometry have been employed in grout testing, but are not described in this test method. Since test results vary with methods of forming the specimen, specimen geometry, and grout mix, comparative test results between specimens made with molds described in 6.

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