ACI 308.1 PDF

ACI 308.1 PDF

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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ACI pdf – Free Download PDF

Because SCP products penetrate into the concrete, they do not form a surface membrane. Concrete — Drying vs. Errata are not included for collections or sets of documents such as the ACI Collection. Concrete Cracking October 30, – These alternative methods are 3008.1 necessarily equal in effectiveness, cost, effect on project schedule, or impact on other aspects of the project.

ACI 308.1.pdf

The full and complete returned product acci be accepted if returned within 60 days of receipt and in salable condition. Guide for Specifying Underground Shotcrete. This document provides requirements for alternative methods for curing concrete.

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 qci curing. Figure 4 shows the performance of treated concrete in water permeability testing in a hydrostatic pressure environment, another reason curing is often called out.

An important 038.1 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. The reaction products formed fill capillaries and shut down liquid water transmission. 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.

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Figure 1 above shows the percentage of strength gain associated with various curing methods. In other words, the semi-evaporable and non-evaporable water continues to be zci available for hydration until it is consumed or an equilibrium acu is achieved when SCP products are used.

The objective of curing is to allow the concrete to meet performance parameters; SCP products produce 38.1 performance parameters at a rate equal to or better than moist curing. The action works in the other direction as well, holding in water that would normally evaporate at early ages. Any applicable errata are included with individual documents at the time of purchase.

These items are not eligible for return.

This action makes SCP products cai effective waterproofing agent, even under hydrostatic pressure. At least two ASTM C09 subcommittees are currently working on standards to better evaluate the performance of colloidal silica.

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 continuous curing environment.

This specification has default 308. that may or may not be applicable to a specific project. 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.

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February 26, – 1: Choose Product Language English.

Specification for Curing Concrete

Additionally, SCP products become a permanent part of the concrete while membranes and water ponding are temporary. ASTM C membrane-forming curing compounds were developed as a solution to the need 308.1 a time-saving alternative to water ponding.

Compressive strength development is the primary reason curing of concrete is required, and SCP products help achieve even better performance that moist-cured concrete, long held as the gold standard of curing concrete.

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. For a listing of and access to all product errata, visit the Errata page. Curing August 27, – 4: The appropriate duration of curing will depend on the property that is the slowest to develop.

The materials, processes, quality control measures, ack inspections described in this document should be tested, monitored, or performed as applicable only by individuals holding the appropriate ACI certifications or equivalent. July 30, – 2: Figure 2 shows the performance of concrete treated with SCP products versus air and moist cured concrete.