ASTM C31 - ACI Making and Curing Concrete Test Specimens
When strength is used as a basis for acceptance of concrete, specimens must be molded and cured according to ASTM C31. Cylinder molds can be metal or plastic, so long as they are non-absorbent, non-reactive to concrete, and maintain their …
Casting and Curing Concrete Specimens in Field Based on …
Field curing is used if the specimens are used for determination of whether a structure is capable of being put in service, comparison with test results of standard cured specimens, adequacy of curing and protection of concrete in the structure, and form or shoring removal time requirements.
The Cure for The Cure: A Guide to ASTM C511 and Your Curing …
2016年8月4日 · This article can be utilized as a general guideline for curing materials that include Portland cement concrete, masonry mortar, masonry cement, concrete beams, grout, and hydraulic cement (see Table 1).
1.1 This practice covers procedures for making and curing cylinder and beam specimens from representative samples of fresh concrete for a construction project. 1.2 The concrete used to make the molded specimens shall be sampled after …
Making and Curing Concrete Test Specimens in the Field
2023年10月19日 · This guide will teach you how to cast concrete cylinders for compressive strength testing. It covers the reasons you are performing this test, the equipment needed, and the procedure of ASTM C31. It is intended to be a supplement to reading the ASTM as well as a study tool for the ACI exam.
Curing techniques for test samples are important and the method chosen depends on the product and customer specifications. Test specimens are usually cured in a lime-water bath to verify the mix design and to determine the potential of the mix. Sometimes it is necessary to cure samples in the exact environmental
C31/C31M Standard Practice for Making and Curing Concrete …
2023年7月14日 · 1.1 This practice covers procedures for making and curing cylinder and beam specimens from representative samples of fresh concrete for a construction project. 1.2 The concrete used to make the molded specimens shall be sampled after all on-site adjustments have been made to the mixture proportions, including the addition of mix water and ...
What procedure should be followed for standard curing of …
A. ASTM provides separate standard practices for making and curing concrete specimens in the field (ASTM C31) and in the laboratory (ASTM C192). In the field, the specimens are to be kept in the molds at a temperature of 16 to 27°C (80°F) for a period of up to 48 h, then removed from the molds and stored in a moist condition at 23 + 2°C (73 ...
Jobsite curing of test specimens is a specific methodology designed to cure test specimens according to their specific purpose. Test specimens are fabricated and cured to evaluate concrete performance in accordance with project specifications or …
Concrete Curing: What Equipment is Right For You? - Gilson Co.
Improper curing conditions directly inhibit optimal strength development of concrete strength specimens. Moisture Curing Rooms or Concrete Curing Tanks are two acceptable and widely used methods for curing samples for concrete strength tests. Specific requirements for each are outlined in ASTM C511 and AASHTO M 201 standard specifications.