aggregate ballast in gradation for roofing

Tech Today | Professional Roofing magazine

Growth media do not have the same size, gradation or density of largediameter aggregate ballast. RP14 indicates vegetative roof systems' growth media get the benefit of the windbreak provided by the plants and holding power of the plants' root systems.

Aggtrans ~ Aggregate Transport Corp | CR6 | Crushed Stone ...

Our satisfied customers include masonry, roofing, concrete, paving, landscaping, residential and building contractors. We provide dump sites for dirt, concrete, asphalt and contaminated material. If you need to have soil or debris removed, Aggtrans can do it.

Construction Aggregate Materials | Hutcheson Sand Mixes

Home Aggregates Construction Aggregate Materials. ... Ottawa Type Sand – A uniformly graded, hard, rounded, natural sand with a specific gradation which is used for backfilling around H – Piles in bridge construction. Aggregates for Concrete ... Ballast Stone – Hutcheson quarries extensive hard rock reserves of metababbro, metadiorite ...

Construction Aggregates Aggtrans

Roofing Aggregates In addition to our construction and landscape aggregates, Aggtrans also carries roofing materials. Products are available in bulk and bagged.

Aggregate, Sand, Ballast, Gravel Slate Chippings | Jewson

Aggregate. Jewson supplies a wide range of aggregate products that can be used in both base and decorative applications. Our base products include ballast, building sand, sharp sand, crush and gravel for various construction uses.

Roof Ballast Aggregate | Products Suppliers | Engineering360

Description: This classification defines the aggregate size designations and ranges in mechanical analyses for standard sizes of aggregate used as ballast for membrane roof systems. The text of this classification references notes and footnotes which provide explanatory

4 inch crushed ballast gradation

4 inch crushed ballast gradation. aggregate ballast in gradation for roofing Crushed Rock, Gravel, Sand andNominal/inch smooth river bottom stone of ballast gradation size 4, orStone ballast size ...

White Roof Materials for Reduced Heat | Kafka Granite

Kafka Granite’s white roof crushed aggregates, manufactured sands, and round pebbles can be quickly and easily applied to any preexisting rooftop using a twopart epoxy. Birchwood is also available in 1 1/2″ for traditional roof ballast applications.

SECTION 07 51 00, BUILTUP BITUMINOUS ROOFING

show on roof plan location of aggregate ballast and weight for each location if not specified. the rate of aggregate ballast applied and paver system in accordance with FM Data Sheets 17, 128, and Technical Advisory Bulletin (TAB) 129 for applicable site wind uplift.

Cadman | Aggregate Products

Call for a Free Quote! Bryce Long o. (425) 9617254 c. (425) 7663916 Patrick Gleason o. (425) 9617220 c. (206) 6971587 Caryn McGoorty o. (425) 9617386

JM EPDM MEMBRANE SPECIFICATIONS Johns Manville

Nominal 1½" (40 mm) Aggregate: Clean, smooth, river bottom stone consisting of ballast gradation Size 4 (or, alternatively, Size 3), as specified in ASTM D 448 “Standard Sizes of Coarse Aggregate”.

Concrete Paving Units for Roof Applications SEPT

A primary role of segmental concrete units is ballast for low slope roofing materials to prevent uplift from high winds. The units provide superior performance compared to gravel ballast.

CBD65. Mineral Aggregate Roof Surfacing NRCIRC

CBD65. Mineral Aggregate Roof Surfacing. Originally published May 1965. Tibbetts and Baker. Roofs are often more exposed to climatic conditions than the other exterior elements of a building.

AREMA Gradations Affecting Ballast Performance Using ...

AREMA Gradations Affecting Ballast Performance Using Discrete Element Modeling (DEM) Approach Tutumluer, E., Huang, H., Hashash, , and Ghaboussi, J. ... applied to the different ballast gradation characteristic curves to investigate the adequacy of ... optimized aggregate gradation an increase in concrete strength of 10 to 20 percent could be

JM EPDM MEMBRANE SPECIFICATIONS Johns Manville

Nominal 1½" (40 mm) Aggregate: Clean, smooth, river bottom stone consisting of ballast gradation Size 4 (or, alternatively, Size 3), as specified in ASTM D448 “Standard Sizes of Coarse Aggregate”.

Letters | Professional Roofing magazine

Clearly, these materials are not of the same size, gradation and density as aggregate ballast. RP14 permits areas of exposed growth media up to 5 inches in diameter and allows the use of vegetative roof systems in areas with basic wind speeds up to 140 mph in some instances.

Crushed Stone NJ, NY, NYC, PA

Crushed stone is an aggregate that has been crushed, reduced in size and screened to the proper specification. ... White marble roofing stone is a highly reflective, roofsurfacing material. It is made up of specific gradations of marble aggregate with a max size of 3/8″.

Roofing Systems | WBDG Whole Building Design Guide

Generally, looselaid, ballasted roofing systems are not recommended, or at least, discouraged, for three reasons: 1) a leak is very difficult to locate because the water runs freely in numerous directions and for longer distances under the looselaid membrane; 2) the membranes tend to pull at their perimeter ties, raising and stretching the ...

4 inch crushed ballast gradation

aggregate ballast in gradation for roofing. Crushed Rock, Gravel, Sand and ... 1 3/4 Roofing Gravel | Edw. C. Levy Co. Ballast aggregate for rubber ... Nominal 11/2 inch smooth river bottom stone of ballast ... Contact Supplier AGGREGATE SPECIFICATIONS Lafarge In Simcoe County.

SECTION 20110 BALLAST AND WALKWAY AGGREGATE

SECTION 20110 BALLAST AND WALKWAY AGGREGATE PART 1 – GENERAL DESCRIPTION A. Section includes specifications for furnishing and placing ballast and walkway ... September 30, 2011 BALLAST AND WALKWAY AGGREGATE 1. Perform gradation tests plus all of the tests specified herein on at least five (5) separate ballast samples at the quarry for ...

RC1606A Assessment of Aggregate Sources in Michigan for ...

to assess the current aggregate sources in Michigan for HSR ballast and (3) to investigate a carbonate aggregate deposits located in northern Michigan along Lake Michigan that was found to have unique dynamic properties that might make it useful as a HSR ballast.

Aggregates | Fine, Base, Coarse, Rip Rap | Martin Marietta

Aggregate base course is an engineered mixture of coarse and fine aggregate designed to support heavy loads and is used in many applications such as foundations for highways and buildings as well as support of equipment on unpaved surfaces such as job site roads and oil well pads.

Effects of Ballast Degradation on Shear Strength Behavior ...

Effects of Ballast Degradation on Shear Strength Behavior from Largescale ... aUniversity of Illinois at UrbanaChampaign Abstract. Ballast, typically comprising large sized aggregate particles with uniform gradation, is an essential layer in the railroad track substructure. ... To investigate the effects of ballast aggregate breakdown and ...

ballast rock specification

Recommended Ballast Gradations Army Transportation ... Ballast FiberTite Roofing Systems General Guide Specifications. ... Oct 5, 1996 ... Part 7: Railway ballast ... of aggregates intended for use as railway ballast. This Standard covers a new area of specification for Australian... More details » …

Martin Marietta Materials Coarse

Coarse size range: 4" 3/16"; Other DOT and Special Sizes Available at Most Locations Locate a facility

Stone Types Laurel Aggregates

Laurel Aggregates supplies a variety of high quality crushed stone aggregates, CO2 absorbtion stone, and rip rap material that meets any specification.

2 Aggregate Gradation and Sampling Civil Engineering

Aggregate Gradation. CIVL 3137 2 Important Properties Hardness (resistance to wear) Durability (resistance to weathering) Shape and surface texture ... GapGraded Aggregate 0 20 40 60 80 100 100 10 1 Percent Passing Opening Size (mm) 1½" ¾" 3/ 8" 4 8 16 30 50 100 200 Open graded gravel Open graded sand Gap graded blend.

Construction Aggregates Vulcan Materials Company

Construction Aggregates. Vulcan is North America’s leading producer of construction aggregates, primarily crushed stone, sand and gravel. We produce these materials from natural deposits such as granite, limestone and trap rock.

FLUIDAPPLIED PROTECTED MEMBRANE ROOFING Product …

Aggregate ballast in gradation[ and color] indicated. Roof paver[, full sized,] in each color and texture required. ... Retain this article if covering roofed area with roof pavers instead of aggregate ballast. Roof perimeter and corner securement requirements are based on Dow Technote 508.

SECTION 075552 Product MasterSpec®

Ballast in gradation[ and color] indicated. Roof paver[, full sized,] in each color and texture required. ... Retain this article if covering roofed area with roof pavers instead of aggregate ballast. Roof perimeter and corner securement requirements are based on Dow Technote 508.

Crushed Rock, Gravel, Sand and Stone Products | Hedrick ...

Hedrick Industries supplies/produces crushed stone and rock, gravel and sand through the South East from one of our 9 locations in NC and SC. ... COARSE AGGREGATE GRADATIONS >> DOWNLOAD PDF FINE AGGREGATE GRADATIONS >> DOWNLOAD PDF ... Decorative Gravel, Roofing Ballast, Metallurgical Gravel, Filtration Gravel. CORPORATE OFFICE. Hedrick ...

Lecture 4. Aggregates Aalto

chlorides, glass, gypsum board, sealants, paper, plaster, wood, and roofing materials. • In general, applications of recycled aggregates without any processing include: many types of general bulk fills

Sand / River Rock / Crushed Rock / Cobblestone / Pea ...

Front Range Material Inc. sells in wholesale a range of washed river rock and crushed rock products throughout Colorado