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. The reaction products formed fill capillaries and shut down liquid water transmission. Errata are not included 308.1 collections or sets of documents such as the ACI Collection.
ACI 308.1-11 Specifications for Curing Concrete
July 30, – 2: 3081. a listing of and access to all product errata, visit acu Errata page. 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 used to put the numbers generated into practice.
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 zci tested, monitored, or performed as applicable only by individuals holding the appropriate ACI certifications or equivalent.
This document provides requirements for alternative methods for curing concrete. Because SCP products penetrate into the concrete, they do not form a surface membrane. Concrete Cracking October 30, – In other words, the semi-evaporable and 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.
Until those standards are available, and ACI While membranes degrade over time, and water ponding methods cannot be continued indefinitely, the use of SCP products provides a 308.11 curing environment. The full and complete returned product will be accepted if returned within 60 days of receipt and in salable condition. This specification addresses curing methods applied after placement of concrete and does not apply to internal curing use of saturated lightweight aggregate or other materials to provide supplemental water or to accelerated curing heat curing.
SCP Tech Brief: Concrete Curing – Spray-Lock Concrete Protection
The action works in the other direction as well, holding in water that would normally evaporate at early ages. Figure 2 shows the performance of concrete treated with SCP products versus air and moist cured concrete. This action makes SCP products an effective waterproofing agent, even under hydrostatic pressure. These alternative methods are not necessarily equal in effectiveness, cost, effect on project schedule, or impact on other aspects of the project.
Guide for Specifying Underground Shotcrete.
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. Any applicable errata are included with individual documents at the time of purchase. Compressive strength development is the primary reason curing 380.1 concrete is required, cai SCP products help achieve even better performance that moist-cured concrete, long held as the gold standard of curing concrete.
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According to ACI R, when determining the qci of curing, consideration should be given to the concrete properties that are desired in addition to compressive strength development. Curing August 27, – 4: These items are not eligible for return. ASTM C membrane-forming curing compounds were developed as a solution to the need for a time-saving alternative to water ponding.
This specification has default settings that may or may not be applicable to a specific project. Choose Product Language English.
Concrete — Drying vs. Figure 1 above shows the percentage of strength gain associated with various 3088.1 methods. Compressive 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.
30.81 February 26, – 1: 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. The appropriate duration of curing will depend on the property that is the slowest to develop. At least two ASTM C09 subcommittees are currently working on standards to better evaluate the performance of colloidal silica.