Federal Facility Criteria: History: Below is a listing of the Revisions and Changes made to this UFGS. Updated paragraph 126.96.36.199.5 in response to CCR 1786. Replaced section reference 01 35 40.00 20 with 01 57 19.00 20 TEMPORARY ENVIRONMENTAL CONTROLS ACI 207.1R defines mass concrete as, any volume of concrete with dimensions large enough to require that measures be taken to cope with the generation of heat from hydration of the cement and attendant volume change to minimize cracking. Many state DOTs require contractors to provide thermal control plans for bridge elements Specifications for mass concrete often require particular cement types, minimum cement contents, and maximum supplementary cementitious material 0 10 20 30 40 50 60 70 80 90 0100020003000400050006000 Concrete Compressive Strength, psi M a x. A l l o w a b l e T e m p. D i f f e r e n c e,.
Massachusetts Department of Transportation - Highway Division . Standard Specifications for Highways and Bridges . ii 2020 Edition . Subsection 5.02: Plans and Detail Drawings. The definition of mass concrete per the American Concrete Institute (ACI) is any volume of concrete with dimensions large enough to require that measures be taken to cope with generation of heat from hydration of the cement and attendant volume change to minimize cracking (ACI 116R and ACI 301)
Today, the American Concrete Institute (ACI) defines mass concrete as any volume of concrete with dimensions large enough to require that measures be taken to cope with generation of heat from hydration of the cement and attendant volume change to minimize cracking. Here are two important things to consider when working with mass concrete The in-situ temperature rise of structural reinforced mass concrete (RSMC) differs significantly from traditional unreinforced mass concrete, such as dams. The compressive strength of RSMC structures is often higher and required at earlier ages. This leads to higher cementitious materials contents and subsequent higher potential temperature rise Specifications vary among different agencies; mass concrete is defined by most specifications based on element dimensions. Structural concrete with dimension greater than 3 feet is a commonly used guideline for determining mass concrete. The dimension for classifying mass concrete ranges from 1.5 feet to 6.5 feet . 2) Any specific construction sequence requirements. 3) Placing sequence, if required, for slabs on continuous steel units. 4) Construction schedule restrictions different from those in the Item. 5) Rate of concrete placement if different from that in the specifications. 6) Concrete placing sequence
1 Consistence class S3 should be used for strip foundation concrete and consistence class S4 should be used for trench fill foundation concrete. 2 ST4 mix for house and garage floors may only be used in conjunction with Chapter 5.2 'Suspended ground floors'. In all other cases, the designated mix should be used developmental specifications for mass concrete - control of heat of hydration effective date october 20, 2015 the standard specifications, series 2015, are amended by the following modifications and additions. these are developmental specifications and the . Because concrete materials, specifically SCMs and low-CTE coarse aggregates, play a major role in the occurrence of thermal cracking, tiered specifications for mass concrete. Mass Concrete. CTLGroup is a world leader providing consulting services related to mass concrete construction technology. Our mass concrete experts have helped countless contractors, engineering designers, and owners write, adapt, understand and work within specifications for mass concrete elements and structures
and modulus of elasticity) of concrete. Mass concrete specifications As explained above, the two main concerns with mass concrete placements are the maximum temperature and the maximum temperature difference. Specifications typically limit the maximum temperature to 160°F and the maximum temperature difference to 36°F. Specifications also. Download Technical datasheets and 3 part specifications for Mass Concrete with SmartBuilding Index, the resource construction industry professionals rely on to help with critical decision-making (CSI MasferFormat Division 03 70 00 TxDOT recently updated the standard specifications for highway construction. (4) The section addressing concrete structure construction-in particular, mass concrete construction-was modified slightly to address what to do if the temperature controls shown in Table 1 were exceeded. As the use of the ConcreteWorks software to predict thermal.
This specification covers the requirements for concrete used in mass concrete elements. Concrete proportioned for mass concrete applications shall conform to the applicable requirements of PARTS 600 and 800 of these specifications, together with the additional provisions set forth below Mass Concrete: a. Fly Ash -Ensure that the quantity of cement replaced with fly ash is 18% to 50% by weight, except where the core temperature is expected to rise above 165°F. In that case, ensure that the percentage of fly ash is 35% to 50% by weight. b
of mass concrete have been written during the past memoranda and because *additional experiences in 25 years. Several of these writings were con-. cooling mass concrete structures have modified, cerned only with the mathematical relationships in some instances, the application of temperature of heat flow Mass Concrete Spec. Mass Concrete Spec. cmbyrd77 (Structural) (OP) 13 Aug 13 17:35. I was wondering if anyone has good verbiage to add to 03300 - Cast-In-Place Concrete spec. for prevention of thermal cracking due to Mass Concrete. Any help would be greatly appreciated. Thank you in advance 3463.3 Mass Concrete: When mass concrete is designated in the Contract Documents, provide an analysis of the anticipated thermal developments in the mass concrete elements for all expected project temperature ranges using the proposed mix design, casting procedures, and materials. to ensure compliance with specification requirements for. Hi there, I have a question regarding minimum reinforcement for mass concrete (4m W x 4m H x 24m L). As shown in the picture, this is a tunnel plug design and my calculation (based on tunnel plug design guidelines) shows that mass concrete will be adequate for withholding the water pressure upstream and no tension reinforcement is required Division 03 - Concrete. 030000 - Concrete; 031000 - Concrete Forming and Accessories; 032000 - Concrete Reinforcing; 033000 - Cast-in-Place Concrete; 034000 - Precast Concrete; 035000 - Cast Decks and Underlayment; 036000 - Grouting; 037000 - Mass Concrete; 038000 - Concrete Cutting and Boring; 039000 - Unused; Division 04.
Mass concrete is defined in ACI 116R as any volume of concrete with dimensions large enough to require that measures be taken to cope with generation of heat from hydration of the cement and attendant volume change to minimize cracking. The design of mass concrete structures is generally based on durability, economy, and thermal action, with. A mass concrete specification was then developed, which designates mass concrete least dimensions, maximum temperature limits, and maximum temperature difference limits based on SCM use and concrete CTE SPECIFICATION MATERIAL SPECIFICATION FOR CONCRETE - MATERIALS AND PRODUCTION TABLE OF CONTENTS 1350.01 SCOPE (W/CM) means the ratio by mass of the amount of water to the total amount of cementing material in a freshly mixed batch of concrete or mortar, stated as a decimal. Th it as Mass Concrete, in accordance with the Standard Specification, the PCC classification system will still be used to specify the compressive strength, aggregate size and Exposure Factor. Concrete suppliers may tailor the mix to address temperature and cracking in the concrete, but the Contractor shall prequalify the proposed mix with ampl The concrete placed in different massive structures such as dams, bridge piers, canal locks, etc is known as mass concrete. In mass concrete, larger size aggregates (up to 150 mm maximum) and low slump (very stiff consistency) are used to reduce the amount of cement in the concrete mix (normally 5 bags per m3 of mass concrete)
DIVISION 03 - CONCRETE SPECIFICATION 031000: FORMS AND FORMWORK . PART 1.0 GENERAL 1.1 DESCRIPTION The work of this specification includes furnishing of all labor, materials, equipment and incidentals to install, adjust, and remove all formwork required for the forming of cast-in-place concrete, as shown on the Construction Drawings and as. Without quantify-able values for mass concrete effects in shafts the State assigned a somewhat arbitrary size of 6 ft diam to delineate when mass concrete specification should be imposed until more information could be obtained. The traditional volume to area ratio limit from the SDG 3.9 would have been a bit more restrictive limiting it to 4. about mass concrete and mass concrete issues • To provide a reference guide to WVU researchers • 27 state agencies responded • 12 agencies have no specification for Mass Concrete • Additional data from Iowa DOT received in 2013 • Conclusion: Although there are similar approaches regardin Specifications, by Standard Special Provisions which are unique to a select group of projects or by Project Special Provisions which are unique to the specific bid proposal or contract. Working titles have a masculine gender, such as workman, workmen and foreman
Cement Standards and Concrete Standards. ASTM's cement and concrete standards are instrumental in the evaluation and testing of concrete, cement, and aggregates. Concrete can have different properties depending upon the mixture that is used in creating it, which contains cement, chemical admixtures, and aggregates substructure elements, and other concrete structures as indicated. 2. MATERIALS 2.1. Concrete. Provide concrete in accordance with Item 421, Hydraulic Cement Concrete. Provide the class of concrete for each type of structure or unit as shown on the plans or in pertinent governing specifications. 2.2. Grout or Mortar. Provide grout for.
to architectural concrete, lightweight concrete, mass concrete, prestressed concrete, and shrinkage-compensating co ncrete. Provisions governing test- SPECIFICATIONS FOR STRUCTURAL CONCRETE 301M-3 Section 6—Architectural concrete, p. 301M-26 6.1—General 6.1.1—Description 6.1.2—Submittal TxDOT has established standards and specifications for the construction and maintenance of highways, streets and bridges. Below are links to documents and important information for contractors and professional service providers. 2014 Standard Specifications Book. Specifications for mass concrete often require particular cement types, minimum cement contents, and maximum supplementary cementitious material contents. Once this information is available, the process of predicting maximum concrete temperatures and temperature differences can begin. Several options are available t
The depth of the footing (2.13 m) was the critical dimension that qualified it as a mass concrete member as per Iowa DOT specification and, therefore, its construction and early-age temperature profile were analyzed Sorry to say but most of the answers provided here are technically incorrect. Mass concrete is defined by ACI 116R as: any volume of concrete with dimensions large enough to require that measures be taken to cope with generation of heat from hydr.. A. Section includes specifications for cast-in-place Portland cement concrete including mix designs, delivering, and placing. 1.02 REFERENCE STANDARDS A. American Concrete Institute (ACI): 1. 211.1 Selecting Proportions for Normal, Heavyweight and Mass Concrete 2. 301 Specifications for Structural Concrete for Buildings 3
mass concrete fill; Strength: Assume 10N/mm2 at 28 days. If supplies are from a quality assured supplier use GEN1. ST3. The specifications for the RC-series of designated concretes include requirements for maximum w/c ratio (W/C) and minimum cementitious content (MCC), which makes specification easier and complete.. below, 'Specification 420' limits mass concrete placement temperature to 24 °C the maximum in-place temperature to 71 °C with the purpose of avoiding DEF, and the maximum temperature difference in the concrete to 20 °C. The research review highlighted that recent amendments .. From: Cement and Concrete Research, 2019
Conform to the manufacturer's specifications. 601—2 D) Plastic Lined Forms. Conform to the manufacturer's specifications. revolving blade type, constructed to produce a thoroughly mixed concrete mass with a uniform distribution of materials throughout. Keep the interior of th Downloads for Xypex Chemical Corp., Cad files (ref: Q:mass concrete bim maintenance, 0) with architectural information on building materials, manufacturers, specifications, BIM families and CAD details 02203 - Trenching. 02204 - Base Course - Includes change listed in 3/17/04 Errata Sheet No. 2. 02205 - Riprap. 02401 - Sanitary Sewer Pipe. 02402 - Sanitary Sewer Manholes and Cleanouts. 02403 - Sanitary Sewer Encasement. 02501 - Storm Sewer Pipe. 02502 - Storm Sewer Manholes, Inlets, and Catch Basins. 02601 - Water Pipe
Concrete Block Paving. This specification is suitable for most residential projects such as patios and driveways. Excavate to reduced depth of at least 200mm below finished level (350mm below dpc) and cart all spoil to licensed, off-site tip. Excavate any soft spots in sub-grade as required and dispose Concrete Technology Manual Refer to the Concrete Technology Manual, Chapter 7, Caltrans Advancements/High Performance Concrete, for additional information. 51-6.01C Submittals Contractor Requested Construction Joint Mass concrete is typically identified in the contract by the minimum dimension of an element exceeding 7 feet Specification for Structure Foundation Construction Check this is the latest version before use. i Specification Ver 2.0 Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802 Content Pioneering the world's appreciation of concrete. Founded in 2000, MASS Concrete is the UK's leading manufacturer of unique products and installations in concrete. With a combined experience of over 70 years in the construction industry, our specialist team is widely recognised by leading architects, designers and specifiers for excellence in bringing creative ideas to life
C7 & 8 concrete mix, Gen 0 concrete or wet lean mix concrete, is commonly used in both commercial and domestic projects for a huge range of general applications, such as kerb bedding, haunching and backing, domestic foundations and blinding. Ideal for: Cavity filling, kerbing, domestic foundations & haunching. Strength: 7 Newton/28 day strength Mass concrete has been historically associated with large structures such as dams and other large volume placements. However, due to the increasingly common use of fast-track construction practices and high-performance concretes with high cementitious material contents, mass concrete issues are being encountered in typical bridge and building placements Concrete - Building material and construction product manufacturers organized by the product or the material into CSI master format divisions. Explore the divisions below to gather product data and access downloadable content including CAD files, BIM objects, specifications and much more Section 51 Concrete Structures 4-5101 General. This section covers items related to constructing concrete structures. Section 51, Concrete Structures, of the Standard Specifications provides requirements for constructing concrete structures. Concrete structures include concrete bridges, structure approach slabs, culverts, headwalls, endwalls, drainage inlets, retaining walls, and other. TAMS - Farm Building and Structures Specifications. From Department of Agriculture, Food and the Marine. Published on 6 November 2020. Last updated on 14 June 2021. 1. Planning & Development Regulations 2001. 2. Health and Safety Guide for Construction Works. 3
Mass concrete is defined as a structural concrete placement having a least dimension of 48 inches or greater, or if designated on the plans or in the project specifications as being mass concrete. Drilled shafts are exempt from mass concrete requirements. 901.12.2 General Submit proposals for the mass concrete mix design 03 70 00 - Mass Concrete Manufacturers of Mass Concrete Browse companies that make mass concrete and view and download their free cad details, revit BIM files, specifications and other content relating to mass concrete as well as other product information formated for the architectural community Standard Construction Specifications 2015 MASS Division 30 - Portland Cement Concrete 1/15 STANDARD CONSTRUCTION SPECIFICATIONS FOR PORTLAND CEMENT CONCRETE DIVISION 30 SECTION 30.01 GENERAL Article 1.1 Scope of Work The Work covered by this Section consists of providing all plant, labor, equipment Glass Fiber for GFRC and Fiber-Reinforced Concrete and Cement D6942 Test Method for Stability of Cellulose Fibers in Alkaline Environments D7357 Speciﬁcation for Cellulose Fibers for Fiber-Reinforced Concrete 2.2 ACI Standards and Reports: 211.1 Standard Practice for Selecting Proportions for Nor-mal, Heavyweight, and Mass Concrete Normal, Heavyweight, and Mass Concrete ACI 211.2 Standard Practice for Selecting Proportions for Structural Lightweight Concrete . ACI 211.3 Guide for Selecting Proportions for No-Slump Standard Specification for Concrete Sewer, Storm Drain, and Culvert Pipe ASTM C 31 Standard Practice for Making and Curing Concrete
[S. ACI 117 Specification for Tolerances of Concrete [T. ACI 211.1 Standard Practice for Selecting Proportions for Normal, Heavyweight, and Mass Concrete [U. ACI 223 Guide for the Use of Shrinkage-Compensating Concrete [V. ACI 301 Specifications for Structural Concrete [W. ACI 302.1R Guide for Concrete Floor and Slab Constructio Municipality of Anchorage Standard Specifications (M.A.S.S.) 2015 M.A.S.S. is effective 3/1/2015 and is provided below. 2015 is the most current adopted version of M.A.S.S. When updates are made to M.A.S.S., this website will be updated. Each user of M.A.S.S. is responsible for verifying that they are using the most current version Standard Specifications for Road and Bridge Construction Adopted April 1, 2016 Price: $30.00 Printed by Authority of the State of Illinois (15-94110; 20,000; 09-2015
Specification for Mass Concrete. Google Scholar. Adiabatic Temperature Rise Test Result (from 17/3/2011 to 29/3/2011), Stage 1, for 265MW TNB Hulu Terengganu Hydroelectric Project, Malaysia. Google Scholar Mass concrete can be defined as any large volume of cast-in-place concrete with dimensions large enough to require measures to cope with the generation of heat and attendant volume change to minimize cracking. Like regular concrete, mass concrete too is primarily composed of cement, aggregate, and water. Additionally, it has pozzolans and other admixtures t Pavements and Concrete Materials Branch at 512.506.5850 to obtain a copy of the Concrete Mix Design and Control Workbook. Concrete intended for use in a mass placement has additional design challenges to ensure the mass placement will not exceed central core temperatures of 160°F or differential temperatures of 35°F STANDARD SPECIFICATIONS of May 4, 2006 277 Section 500 PORTLAND CEMENT CONCRETE SECTION 501 - PORTLAND CEMENT CONCRETE - GENERAL 501-1 DESCRIPTION. These general requirements apply to concrete furnished for pavement, May not be used in mass placements, or as a substitute for class A in Sign Structure, Signal Pole of solid materials such as masonry, concrete, or treated wood, based on the Foundation Design Concept Selection (Appendix A) and Founda-tion Capacity Tables. (Appendix C) (For ma-sonry and concrete refer to CABO R-302.2, R-304.1 and R-304.3; for wood refer to CABO R-302.1 and R-304.5.) 503. STRUCTURAL REQUIRE-MENTS 503-1. FOUNDATION REQUIREMENTS
Basketball Slab Specifications • 4 slab of 3500 psi concrete. • Placed over a 2 - 4 base of compacted stone/stonedust • Medium broom finish for slabs over 25' x 25' • Slightly heavier medium-broom finish for smaller slabs to minimize tile migration • Sloped 1 for every 10 concrete, lignite particles near the surface can expand and cause the pop outs. Lignite is often referred to as brown coal, it is the lowest rank of coal quality. Item Mass % of Total Sample Clay lumps and friable particles 3.0 Material finer than 75 micron (No. 200) sieve: Concrete subject to abrasion 3.0* All other concrete 5.0 Concrete structures in the Eastern region of Saudi Arabia are exposed to the harsh Arabian Gulf environment, and they suffer from deterioration due to accelerated corrosion of the reinforcing steel resulting in reduced service life. The service life of reinforced concrete structures in this environment is strongly affected by the quality of concrete
Assumptions and Specifications for Design of Reinforced Concrete Beam 1. Beam Dimension. The size of a beam is governed by negative moments or shear forces at supports. ACI moment coefficient can be used to calculate moments of a particular span. Alternatively, designers can estimate the depth of a beam at 60 mm to 65 mm per meter of the beam's. The aim of this Technical Specification is to achieve concrete of the required strength, durability and appearance. It describes the materials, supply, placing, compacting, finishing, curing and measurement of concrete. All concrete shall be manufactured and supplied in accordance with the requirements of AS 1379 Concrete supplied under this Specification will be specified in accordance with the Performance alternative in Table 5 of CSA A23.1, with the exception that the Contractor shall submit the proposed concrete mix design(s) identifying the exact proportions of all constituent materials by mass or volume. The Contractor shall MnDOT Smoothness Program. What we do. The Concrete Unit provides leadership and assistance to agencies, contractors, and consultants on specifying, constructing and maintaining long lasting concrete structures and pavements