Building information modeling (BIM) presents structural information in the form of three-dimensional (3-D) graphical representations of elements such as beams, columns, and slabs. This information may be further associated with metadata (nongraphical information) such as compressive strength, reinforcement ratio, and maximum aggregate size. It is not necessarily possible to review a modeled object and understand its accuracy or intention. Viewers of models tend to assume designs are more complete than they may actually be, partially due to highly detailed graphics. Does this object represent 10, 30, or 80% of the final design?
Keywords:
beams; building information modeling; cast-in-place; columns; level of development; slabs.
Code:
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This Specification covers epoxy slurry (ES) polymer overlay for bridge and parking garage decks. Type ES polymer overlay incorporates a low-modulus epoxy binder, fillers, and selected aggregate to produce a flexible, skid-resistant, and low-permeability overlay. The overlay may be used for both new construction and rehabilitation of existing structures. The overlay is placed by applying the mixed epoxy binder and filler to the surface and broadcasting aggregate. This Specification includes requirements for epoxy resin, fillers, aggregates, storage and handling, surface preparation, surface profile, mixing, placement, quality control, and quality assurance.
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This document provides a guide for owners, contractors, designers, and testing, specifying, and inspection organizations engaged in the application of shotcrete for underground support. The guide provides general information for the selection of constituent materials, and methods to proportion shotcrete. Typical methods of batching, mixing, and handling of proportioned shotcrete materials are detailed along with shotcrete placement methods and equipment.
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The purpose of this document is to provide a guide to the protocol for testing and reporting of data for cementitious repair materials. It does not address all the issues associated with material selection. It is the responsibility of the user of this document to determine the suitability of the repair material before use.
Keywords:
data sheet protocol; material characteristics; material properties; packaging; repair materials; test methods; user guide.
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This report provides a technical overview of alkali-activated cement (AAC) history; chemistry; and mechanical, physical, and durability properties. It also highlights successful case study applications and current technical challenges.
Keywords:
alkali-activated cements (AACs); alternative cements; geopolymers
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Civil Survey Applications ( ex . Solutions ) Civil Site Design v24.0 for Autodesk Civil 3D 2015-2024
Size: 1.42 GB
For over 20 years CSS has assisted customers in the civil and survey industries with premium technical support, specialized and customized training services and development of industry driven software solutions built on Autodesk and other technologies. Civil Site Design (ex. Advanced Road Design) adds highly efficient and simple-to-use civil design tools for road network design, highways, road reconstruction, site grading, surfaces, stormwater, sewer and pipeline design to your current CAD platform.
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This Code provides requirements for test load magnitudes, test protocols, and acceptance criteria for conducting a load test as a means of evaluating the safety and serviceability of concrete structural members and systems of structures. A load test may be conducted as part of a structural evaluation to determine whether a structure requires repair and rehabilitation, or to verify the adequacy of repair and rehabilitation measures.
Keywords:
acceptance criteria; cyclic loading; load test; monotonic loading; test load magnitude; test protocol.
Code:
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Insulating concrete forms (ICFs) are leave-in-place forms typically produced in block or panel shapes of expanded polystyrene (EPS). They provide additional components, such as insulation and a substrate for interior and exterior finish attachment, for a wall or floor system. The most widely used ICFs are block shapes, which are stacked in an interlocking fashion to create stable formwork for creation of reinforced concrete walls. Due to the variability of these manufactured form systems, this report does not attempt to address every ICF type, but provides a commentary on those systems most prevalent in the market, and insight, as well as additional information, relative to their use in design and construction. The report focuses on ICFs for walls.
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This guide identifies and suggests allocation of responsibilities to various parties involved in concrete rehabilitation in the United States; however, the guidance presented may apply to contractual relationships addressing concrete construction in other parts of the world. This guide can be useful in evaluating existing contract documents for adequacy and balance with respect to responsibilities in concrete rehabilitation projects.
In some cases, the responsibilities outlined carry the force of law. In others, there are options that could be incorporated into a particular contract.
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This Specification covers requirements for strengthening concrete structures using externally bonded fiber-reinforced polymer (FRP) materials using the wet layup method. This Specification includes requirements for surface preparation of the substrate, including applying primers and putties, saturating the dry fabric, installing the fabric on the substrate, identifying and repairing defects, and field testing for quality control of the installation and materials.
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