ACI 308.1 PDF

Jujind Figure 2 shows the performance of concrete treated with SCP products versus air and moist cured concrete. The reaction products formed fill capillaries and shut down liquid water transmission. An important consideration when evaluating products for use with concrete is that ASTM develops standards generate performance numbers while ACI writes the guides and specifications that are used to put the numbers generated into practice. The objective of curing is to allow the

Author:Faebei Mozshura
Country:Angola
Language:English (Spanish)
Genre:Education
Published (Last):22 November 2014
Pages:421
PDF File Size:10.59 Mb
ePub File Size:3.31 Mb
ISBN:965-5-42654-147-2
Downloads:81574
Price:Free* [*Free Regsitration Required]
Uploader:Keshicage



Kasho Curing August 27, — 4: Figure 2 shows the performance of concrete treated with SCP acj versus air and moist cured concrete. Concrete — Drying vs. This document provides requirements for alternative methods for 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. Additionally, SCP products become a permanent part of the concrete while membranes and water ponding are temporary. 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 aic of curing concrete.

An important consideration when evaluating products zci 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. At least two ASTM C09 subcommittees are currently working on standards to better evaluate the performance of colloidal silica.

This specification has default settings that may or may not be applicable to a specific project. Figure 4 shows the performance of treated concrete in water permeability testing in a hydrostatic pressure environment, another reason curing is often called out. Any applicable errata are included with individual documents at the time of purchase.

Figure 1 above shows the percentage of strength gain associated with various curing methods. 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.

July 30, — 2: These items are not eligible for return. Because SCP products penetrate into the concrete, they do not form a surface membrane. The reaction products formed fill capillaries and shut down liquid water transmission. Choose Product Language English. While membranes degrade over time, and water ponding methods cannot be continued indefinitely, the use of SCP products provides a continuous curing environment.

Guide for Specifying Underground Shotcrete. According to ACI R, when determining the duration of curing, consideration should be given to the concrete properties February 26, — 1: 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.

Concrete Cracking October 30, — This action makes SCP products an effective waterproofing agent, even under hydrostatic pressure. The action works in the other direction as well, holding in water that would normally evaporate at early ages. ASTM C qci curing compounds were developed as a solution to the need for a time-saving alternative to water ponding. The appropriate duration of curing will depend on the property that is the slowest to develop.

ACI The full and complete returned product will be accepted if returned within 60 days of receipt and in salable condition.

For a listing of and access to all product errata, visit the Errata page. TOP Related Posts.

JUNKSPACE REM KOOLHAAS PDF

ACI 308.1 PDF

.

THE MAGIC WORD WD GANN PDF

ACI 308.1 PDF

.

Related Articles