ACI Specification for Curing Concrete. Published By: American Concrete Institute (ACI); Page Count: 11; ANSI Approved: No; DoD Adopted: No. Find the most up-to-date version of ACI at Engineering Buy ACI SPECIFICATION FOR CURING CONCRETE from SAI Global.
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Additionally, SCP products become a permanent part of the concrete while membranes and water ponding are temporary. These alternative methods are not necessarily equal in effectiveness, cost, effect on project schedule, or impact on other aspects of the project.
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This specification has default settings that may or may not be applicable to a specific project. Figure 1 above shows the percentage of strength gain associated with various curing methods.
Until those standards are available, and ACI An important consideration when evaluating products for use with concrete is that ASTM develops standards to generate performance numbers while ACI writes the guides and specifications that are 38.1 to put the numbers generated into practice. February 26, – 1: At least two ASTM C09 subcommittees are currently working on standards to better evaluate the performance of colloidal silica.
SCP Tech Brief: Concrete Curing – Spray-Lock Concrete Protection
Any applicable errata are included with individual documents at the time of purchase. Choose Product Language Qci. These items are not eligible for return. For a listing of and access to all product errata, visit the Errata page. This action makes SCP products an effective waterproofing agent, even under hydrostatic pressure.
Because SCP products penetrate into the concrete, they do not form a surface membrane. Curing August 27, aic 4: The appropriate duration of curing will depend on the property that is the slowest to develop. Figure 4 shows the performance of treated concrete in water permeability testing in a hydrostatic pressure environment, another reason curing is often called out.
The materials, processes, quality control measures, and inspections described in this document should be tested, monitored, or performed as applicable only by individuals holding the appropriate ACI certifications or equivalent. Concrete Cracking October 30, – Concrete — Drying vs.
July 30, – 2: Figure 3 below shows the performance of treated concrete tested for drying shrinkage, another important reason curing is required, demonstrating improvements over moist-cured control samples. According to ACI R, when determining the duration of curing, consideration should be given to the concrete properties that are desired in addition to compressive strength development. The action works in the other direction as well, holding in water that would normally evaporate at early ages.
This document provides requirements for alternative methods for curing concrete. The reaction products formed fill capillaries and shut down liquid water transmission.
ACI 308.1-11 Specifications for Curing Concrete
Guide for Specifying Underground Shotcrete. In other words, the semi-evaporable 38.1 non-evaporable water continues to be made available for hydration until it is consumed or an equilibrium state is achieved when SCP products are used. Errata are not included for collections or sets of documents such as the ACI Collection.
While membranes degrade over time, and water ponding methods cannot be continued indefinitely, the use of SCP products provides a continuous curing environment. 3081. Strength as a Function of Age for a Variety of Curing Conditions ACI R According to ACI R, when determining the duration of curing, consideration should be given to the concrete properties that are desired in addition to compressive strength development.
The objective of curing is to allow the concrete to meet performance parameters; SCP products produce those performance parameters at a rate equal to or better than moist curing. Figure 2 shows the performance acu concrete treated with SCP products versus air and moist cured concrete.
This specification addresses curing methods applied after placement of concrete and does not apply to internal curing use of saturated lightweight wci or other materials to provide supplemental water or to accelerated curing heat curing.
ASTM C membrane-forming curing compounds were developed as a solution to the need for a time-saving alternative to water ponding.