The 10th edition includes updates to almost all sections of the specifications, with extensive revisions made to Section 5, Concrete Structures; Section 6, Steel Structures; and Section 3, Loads and Load Factors, which includes information on new risk-targeted design response spectra.
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What conditions suggest the application of internally cured concrete? What are the expected benefits of internal curing using prewetted fine lightweight aggregate?
Keywords:
autogenous volume change; curing; drying shrinkage; early age; fine aggregate; hydration; internal curing; lightweight aggregate; shrinkage; shrinkage cracking.
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This guide provides background and examples on the use of practical aggregate grading tools to improve aggregate performance in concrete and allow the paste content of a concrete mixture to be reduced while achieving satisfactory workability and physical properties. The aggregate grading of a concrete mixture impacts the workability, durability, strength, and sustainability of concrete. These grading tools can also be used to proportion concrete mixtures as well as troubleshoot issues associated with mixtures from high to low workability. This guide does not make recommendations, but it does describe and give examples on how to use these tools.
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Posted by: poolmand - 01-05-2025, 08:58 AM - Forum: ACI
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ACI PRC-(349-359)-24: Design of Nuclear Safety-Related Structures for Impactive and Impulsive Loads using ACI CODE-349 and ASME Section III, Division 2 Provisions
This guide is the work of the ACI 349/359 Task Group on Impulsive and Impactive Loading that established a proposal of updated design provisions for both ACI CODE-349 and ASME BPVC Section III, Division 2. The provisions of this guide are nonbinding on ACI CODE-349-23 Appendix F or ASME BPVC Section III, Division 2:2011 and may change if implemented.
This guide gives the genesis of the provisions that are proposed to be incorporated into these code documents and further explains why these provisions were adopted. Furthermore, the primary mandate of this guide was to align both aforementioned codes and to bring these codes up to date with current industry practices, using current references for the provisions of both code documents. This guide serves as an independent report of the task group’s work to the code committees. This guide is issued as a detailed commentary to the provisions of ACI CODE-349-23 Appendix F or ASME BPVC Section III, Division 2. The language of ACI CODE-349-13 and ASME BPVC Section III, Division 2:2011 form the starting point for the proposed nonbinding revisions already incorporated in the first two columns of this guide. The last column does not provide proposed changes but provides explanations of why such changes are proposed.
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Posted by: poolmand - 12-31-2024, 07:56 AM - Forum: CsiPlant
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CSiPlant v9.0.0.1467 x64
Size: 547.34 MB
NEW:
Piping Design
- Handling of ASME B31J is enhanced, giving the ability to control when to apply Note 3 from Table 1-1. This is applicable when calculating the flex factors for 90 degree bends and elbows that match the thickness of the adjacent pipes.
- ASME B31.12- 2023 has been added.
Drafting:
- Users can now select tees in the model based on the assigned tee type.
-
Code:
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Posted by: poolmand - 12-15-2024, 06:51 AM - Forum: ACI
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ACI-TMS CODE-122.3-24: Thermal Properties of Concrete and Masonry for Use in Determining Energy Code Compliance Except for Low-Rise Residential Buildings—Code Requirements and Commentary
This Code prescribes minimum design and construction requirements for energy efficiency of building envelopes of new buildings and additions to buildings. It applies to buildings having concrete walls, roofs, or floors; masonry walls; and masonry veneer, including veneer attached to frame walls as part of the building envelope. It also provides minimum thermal properties for these assemblies for code compliance.
This Code is applicable to commercial and mid- to high-rise residential buildings that use either electricity from any generation source or fossil fuel. It can be used with applicable energy codes and standards such as ASHRAE 90.1 and the International Energy Conservation Code (IECC).
Keywords:
energy efficiency; specific heat; thermal conductivity; thermal diffusivity; thermal resistance; thermal transmittance.
Code:
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ACI CODE-440.13 was developed to provide design professionals a code for the design of strengthening strategies for concrete structures using fiber-reinforced polymer (FRP) systems.
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“Low-Carbon Concrete—Code Requirements and Commentary” (“Code”) provides provisions for concrete where reduced global warming potential (GWP) is required. The Code was developed by a consensus process and addresses cast-in-place concrete with specified compressive strength greater than 2500 psi and less than or equal to 8000 psi. Precast concrete, tremie concrete, auger-cast concrete/grout, shotcrete, pavers, and masonry units are not included in the scope of the Code. This is the first edition of the Code and the scope is limited by the available benchmark data. Future editions of the Code will be broader in scope as data beyond strength benchmarks and for other types of concrete becomes available.
The Code may be adopted as a stand-alone code or can be used in combination with a structural design code or low-carbon material code adopted by an authority having jurisdiction. The Code is in a format that allows reference to a set of chapters based on the structure type. Adoption would include all of Chapters 1 to 4, the applicable Chapter(s) of 5, 6, 7, and/or 8, plus Appendix A. This Code is written in a format that allows reference without change to its language. Therefore, background details or suggestions for carrying out the requirements or intent of the Code provisions cannot be included with the Code itself. The Commentary is provided for this purpose.
Some considerations of the committee in developing the Code are discussed in the Commentary along with references for the user desiring to study individual questions in greater detail.
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