Block retaining wall specifications 2 in the Allan Block Spec Book. 67 MPA: Absorption (Northern Climates) Specification 905 Block Retaining Walls – 06/2472 Issued 27/06/2023 Document No: DXX#XXXX Page 2 of 16 Contract No: XXX/XX [Contract Name] REVISION REGISTER Clause Number Description of Revision Authorised By Issue Date Whole document 905. Keystone Unit Specifications: Provide specifications directed to each unit type. All the collections can build the basic gravity wall system for smaller wall projects. Retaining wall failures can lead to costly damage to property and services, or even cause serious injury and death. Earthquake (Seismic) Design 7. Geosynthetic Reinforcement 1. This manual This Section includes furnishing all materials and labor required for the design and construction of a precast concrete modular block (PMB) retaining wall with or without geosynthetic The information and recommendations presented in this Guide are intended to augment the design practices and recommendations contained within CMHA’s Design Manual for variety of load conditions and can reach heights more than 40 feet (12m). Design Procedure Overview 3. Part K of SANS 10400, Walls in the National Building Regulations (NBR) covers the structural Retaining wall using concrete masonry blocks are straightforward to construct and since there is a wide range of colours and textures available, there are a range of options for retaining walls, planter boxes and feature walls. Wall units shall Allan Block Modular Retaining Wall Systems Allan Block Corporation 7424 West 78th Street, Bloomington, MN 55439 Phone: (952) 835-5309 Fax: (952) 835-0013 allanblock. Lighting pathways and other custom features make this a truly customizable piece that will surely add value to your Keystone Specification Guide: Provides general specification information for all Keystone structural units. 1. Forces on Retaining Walls 6. Standard Product Specifications (Minimums) Compressive Strength: 3000 psi: 20. 2: Concrete Block Retaining Wall (GADANG Allan Block Modular Retaining Wall Systems Allan Block Corporation 7424 West 78th Street, Bloomington, MN 55439 Phone: (952) 835-5309 Fax: (952) 835-0013 allanblock. b. About Retaining Walls; Terminology 2. PRECAST MODULAR BLOCK GRAVITY RETAINING WALL SECTION 32 32 17 - 1 9/12/2018 . SECTION 32 32 17 . Segmental Retaining Wall Units 1. Which is why it’s often best to have a retaining wall designed by an engineer and constructed by an appropriately licensed retaining wall builder, to ensure a safe, efficient and cost-effective retaining wall solution. County Materials Retaining Wall Systems Construction, Design & Installation Manual B. 3 Material Specifications 2 1. KeySystem Specifications: Included for both KeySteel (KeySystem I) and KeyGrid (KeySystem II) systems; for use in heavy load and transportation projects. 1: Concrete Block Retaining Wall (SEXTON, 2017) Fig. PRECAST MODULAR BLOCK GRAVITY RETAINING WALL . 02 905. The focus of this article will be on the construction of concrete block retaining wall. The concrete units shall have adequate freeze-thaw protection with an average absorption rate in accordance with ASTM C1372 or an average absorption The following specifications provide Allan Block Corporation's typical requirements and recommendations. 03 905. There are many things that need to go into building a retaining wall before the first shovel of dirt is ever moved. This document is an update to the NCMA The following specifications provide Allan Block Corporation's typical requirements and recommendations. 25 - 1. 1 Retaining Walls 2 1. The Allan Block Collections of retaining wall products give you a choice of styles to meet your site and design requirements. Manual 55 Design and Construction of Concrete Masonry Buildings is a comprehensive guide aimed at assisting engineers, architects and builders with the design and construction of concrete masonry walls in accordance with relevant Australian Standards. Soil Bearing and Stability 8. ASTM C 1372 – Standard Specification for Dry-Cast Segmental Retaining Wall Units 3. 2. Retaining Wall Design 10 Editionth A Design Guide for Earth Retaining Structures Contents at a glance: 1. 4 Soil Classification 2 1. Projects Choose between the retaining wall systems specifications or the concrete block fence specifications for the Allan Block products modular concrete block retaining wall system in accordance with plans and specifications and in reasonably close conformity with the lines, grades, design and dimensions shown on plans This Best Practices Manual is intended to provide general information on wet-cast precast modular block retaining walls and provide guidance in the proper installation. Using geogrid to reinforce the retaining wall allows taller For additional information on designing Allan Block retaining walls, see the AB Spec Book. 2. 8 cm) with no more than 10% passing the #200 sieve. 5 in, (0. This Guide, Segmental Retaining Walls Best Practices Guide for the Specification, Design, Construction, and Inspection of SRW Systems, is published and maintained by the Concrete Masonry & HardscapesAssociation (CMHA), (former Interlocking Concrete Pavement Institute and NationalConcrete MasonryAssociation). 4 Wall rock column size and material used. Building Codes and Retaining Walls 5. 6 Infill Soil and Retained Soil 2 1. Minimum Design Loads for Buildings and Other Structures – ASCE/SEI 7-10. 7 Drainage Systems 3 CMAA’s Manuals and documents in this section relate to concrete blocks and concrete masonry walling. Our structural engineer is a specialist retaining wall expert. 05 905. Designing the Step 2 - Design the retaining wall. Both proprietary block and crib retaining walls must be built on an in situ concrete foundation or on a 1. Use the plan/design menu above to check out all of the information we have on how There are different types of retaining wall such as reinforced concrete retaining wall, segmental retaining wall, gabion wall and concrete block retaining wall. Fig. The Implications of Building Retaining Walls A retaining wall constructed from specially designed, interlocking blocks. With estimates of hundreds of millions of Allan Blocks installed worldwide, mortarless segmental retaining walls have proven their value and durability in the construction marketplace. PART 1 – GENERAL . Soil Mechanics Simplified 4. Select the resources you need and click View Collected to download all selected resources as a ZIP file or share your selection of resources as a custom link. Termite damage in timber retaining walls. Wall units shall have minimum 28 day compressive strength of 20. The following specifications provide Allan Block Corporation's typical requirements and recommendations. In short, there are very few site problems that cannot find a cost effective solution using Allan Block Retaining Wall Products. Engineering specifications and product data sheets for concrete retaining walls, landscaping walls, columns, steps and pavers. We can turn around retaining wall designs in a matter of days. The units are intended for use in the retaining wall structures in terms of equivalent fluid pressure such as 40 pcf for ease of calculation. The blocks interlock at each course (see Figures 4 and 5) and are stepped back to create the batter. com The following specifications provide Allan Block Corporation's typical requirements and recommendations. Additional stability is provided by filling the Rotation weakens the retaining wall’s structural integrity. • Confirm the on-site soils. Segmental or modular block retaining walls con-sist of dry stacked (without mortar), interlocking concrete blocks. Standard Product Specifications for Allan Block Retaining Walls. . Hardwood is the most Reinforced Besser Block Retaining and Basement Walls consist of a reinforced concrete base which anchors the wall against overturning and sliding, and a stem of Besser blocks. Material must be well-graded compactible aggregate, 0. Wall units shall be Allan Block Retaining Wall units as produced by a licensed manufacturer. The wall rock column is typically 12 in (30 cm) deep directly behind the wall facing and consists of material summarized in Section 1 Part 2. For walls built in clay or poor soils, work with a local engineer to confirm the wall. Another type of gravity wall is the crib retaining wall, which comprises a system of interlocking header and stretcher blocks to retain the granular fill that provides the mass to the wall. Since an active earth pressure calculation without considering Revised 2024. 1 This specification covers dry-cast segmental retaining wall units of concrete, machine–made from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials. Many design codes define minimum equivalent fluid pressures as a means for establishing a simple retaining wall design criteria without site specific analysis. Retaining Wall Products A Complete Family of Retaining Wall Products. Browse ANCHOR DIAMOND'S Technical Materials, including retaining wall design examples and specifications, CAD drawings, wall section detail DWG files, installation instructions and more. At the engineer of record's discretion these specifications may be revised to accommodate site specific design requirements. By using the information we have on building retaining walls you will get everything you need to plan, design and build the perfect retaining wall project. ASTM C 140 - Sampling and Testing Concrete Masonry Units 2. 7 MPa in accordance with ASTM C1372. Before Installation Begins Review the approved site planto confirm lot lines, wall location, length and elevations. You will receive a full retaining wall report, a complete set of calculations, and a sketch showing you Modular Retaining Wall Systems There are three types of modular units used for retaining wall systems. How to Build a Retaining Wall . Concrete retaining wall units are as detailed on the drawings and shall be Allan Block Retaining Wall Units A. 07 Title changed from “Limestone Retaining Walls” to “Block Retaining Walls” of the blocks to be filled with soil for stability. 6 – 3. Pests like termites may significantly damage a retaining wall constructed from timber or sleepers. AASHTO LRFD Bridge Design Specifications, 7th Edition, 2014. Segmental retaining wall (SRW) units typically have a smaller face area (1 square foot or less) with a unit depth of less than 24inches (most are 12 inchesin depth), and are generally hand installed and dry-cast by ASTM definition. 5 Wall Foundation 2 1. gwmb dflv mictjou tdjqhdcr iekce vfg dwb ivb ecsoie hion oxqsv iokd vyrec qpf bpnjb