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The slurry seal must build sufficient cohesion to resist abrasion due to traffic. Otherwise, it will ravel off quickly, particularly in high stress areas Early stone shedding is normal, but should not exceed 3% General rule of thumb for a slurry seal . Chapter 8 –Slurry Seals
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507.04 MEASUREMENT AND PAYMENT. Slurry Seal and Micro-Surfacing will be measured and paid for at the Contract unit price per square yard for one or more of the pertinent items listed below. The accepted quantity of Micro-Surfacing Rutfilling will be paid for at the Contract unit price per ton.
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SLURRY SEAL SURFACING. (REV 9-15-14) SECTION 335 SLURRY SEAL SURFACING 335-1 Description. Construct a slurry seal with the type of mixture specified in the Plans. Slurry seal is a mixture of polymer-modified emulsified asphalt, mineral aggregate, mineral filler, water, and other additives, properly proportioned, mixed and spread on a paved surface.
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1. For purposes of this section only, the permittee must apply Type IV slurry seal to an arterial or collector street, or Type III slurry seal to a local street. CRACK FILL AND SEAL. For all pavement cut repair areas, permittee must apply crack fill and seal between existing and new pavement areas prior to any pavement treatment.
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Type II slurry uses 1/4" aggregate and is commonly used to seal, correct moderate to severe raveling, oxidation damage and loss of matrix, as well as improving skid resistance. It is the most commonly used slurry seal and is widely employed where moderate to heavy traffic is found.
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Caltrans Standard Specifications, Section 37-2, specifies three aggregate grading sizes for slurry seals: Type I, II and III (Caltrans, 2006). The gradation for each type is listed in Table 8-2. Table 8-2 Caltrans Slurry Surfacing Aggregate Gradings (Caltrans, 2006) SIEVE SIZE PERCENTAGE PASSING TYPE I TYPE II TYPE III 3/8 in (9.5mm) - 100 100
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b. For Major and Collector Streets, apply Type II over Type III over entire area with additional Type I slurry over designated bike lanes. Standalone Type III slurry shall not be allowed in any street classification. 2. Placement Limits. Slurry seal shall be placed from curb to curb or to nearest raised median unless otherwise approved by the ...
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TABLE 302-4.3.1 (A) Slurry Seal Min. Max. Min. Max. Type I 8 lbs./yd² 11 lbs./yd² ELT/2950ft² ELT/2145ft² Type II 11 lbs./yd² 15 lbs./yd² ELT/2120ft² ELT/1555ft² ELT = Extra Long Ton. All the calculations are based on 20% water content. An extra long ton of slurry is made up of 2,000 pounds of dry aggregate plus asphalt, accelerations ...
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Type III Coarse Type III treats severe surface defects, including depressions where water collects. Mineral Filler Mineral fillers such as limestone dust, slate dust, hydrated lime, cement, ash, talc, and silica improve the structure and adhesion of the mix. ... Slurry seal applications serve to seal …
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All microsurface/type slurry applications applied have a certified mix design optimization application rates for microsurfacing II and III, and for types I, II, and III slurry. Type II (1/4") Aggregate Size: 12-18 pounds of aggregate per square yard 15% asphalt emulsion. Type III (3/8") Aggregate Size: 18-24 pounds of aggregate per square yard ...
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Finally, Type III slurry seals contain coarse aggregate chunks. These seals are used to compensate for more severe types of surface defects. The large pieces of aggregate can also fill depressions in the surface, thus reducing the amount of water ponding. Slurry Seal vs. Sealcoat.
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Type III corrects severe surface conditions — preventing hydroplaning and providing skid resistance under very heavy traffic loads. A slurry seal for nearly any need or condition can be custom designed to satisfy the most difficult requirements.
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Type III – Slurry Seal (Coarse Aggregate,3/8") Used for high volume roads and heavier traffic. Recommended application rates are 9.8- 16.3 kg/m² For further information on how to make slurry seal part of your preventative maintenance program, or which type best suit your needs, contact us today, and protect your paving investments.
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Aggregate Sizes (MAS) for the slurry types of No. 4, 3/8 inch, and 3/8 inch for the Type I, II, and III slurry seals, respectively. The City of Columbus and VDOT specify MAS values of 3/8 inch for their three slurry seal types. Caltrans and City of Columbus use similar materials quality tests—namely, Sand Equivalent and L.A. Abrasion,
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Type II -Slurry Seal ( General Aggregate,1/4″ max) Most commonly used slurry. Good for moderate to high volume roads. Recommended application rates are 6.5-10.8 kg/m 2; Type III - Slurry Seal ( Coarse Aggregate,3/8″) Used for high volume roads and heavier traffic. Recommended application rates are 9.8- 16.3 …
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3-12 2004 Specifications CSJ 1 SPECIAL SPECIFICATION . 3250 . Emulsified Asphalt Slurry Seal Surface Treatment . 1. Description. Furnish and place an emulsified asphalt slurry seal surface treatment consisting of a mixture of emulsified asphalt, mineral aggregate, and water properly
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Slurry seal combines a mixture of water, asphalt emulsion, aggregate, and other additives. There are also three different varieties of thickness available: Type I, II, and III. The difference in each is the size of the aggregates that make up the slurry seal.
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Fine Slurry Aggregate 60 – 80 30 – 40 1.27 – 1.70 10.6 – 14.2 Type I Slurry Aggregate 50 – 75 25 – 38 1.35 – 2.0 11.3 – 17.0 Type II Slurry Aggregate 28 – 35 14 – 18 2.90 – 3.60 24 – 30 600-3.2.5 AGGREGATE: The aggregate shall consist of sound and durable natural of
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Type II aggregate slurry is the most common type. Type III (coarse). This type has the most coarse gradation and is used to treat severe surface defects. Because of its aggregate size, it can be used to fill slight depressions to prevent water ponding and reduce …
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Microsurfacing is similar to slurry seal. It consists of the application of a mixture of water, asphalt emulsion, aggregate (very small crushed rock), and chemical additives to an existing asphalt concrete pavement surface. Polymer is commonly added to the asphalt …
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A slurry seal is the application of a mixture of water, asphalt emulsion, aggregate (very small crushed rock), and additives to an existing asphalt pavement surface. A slurry seal is similar to a fog seal except the slurry seal has aggregates as part of the mixture. This combined mixture of the emulsion and aggregates represents "slurry.".
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CITY OF REDMOND 2019/2020 TYPE II, TYPE III SLURRY SEAL PROJECT Bids Due: 2:00 pm, August 28, 2019 INVITATION TO BID The City of Redmond requests bids for construction of the 2019/2020 Type II, Type III Slurry Project. The project consists of the surface sealing of existing roadway surfaces on local streets throughout Redmond.
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• The slurry seal be mixed in continuous pugmill mixers of adequate size and power for the type of slurry seal to be placed. Indicators required in conformance with the provision in Section 37-2.04, "Proportioning, "shall be in working order prior to commencing mixture and spreading operations.
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Emulsified asphalt slurry seal is paid for at the full Contract Price per square yard (meter) and is full compensation for furnishing materials, including bituminous materials, equipment, work, and labor. Payment will be made under: Item No. 427 Emulsified asphalt slurry seal type ___ stone, Group II Per square yard (meter) 427.5.01 Adjustments
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Type 5840 Cost-effective Cartridge Slurry Seal. Our Type 5840 single-cartridge seal encompasses many of the advantages associated with heavy-duty seal design, encased in a cost-effective...
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Take Advantage of Our 3-Year Warranty on New Asphalt Surfaces . American Asphalt offers a full range of paving and sealing services for commercial properties across California. Our professional estimator will assess the condition of your asphalt surfaces to help you determine whether slurry seal or a seal coat is the best option. We offer ...
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In ideal conditions, a slurry will take 8-10 hours to cure while a sealcoat will take 2-4 hours to cure. 5) Which costs more, a slurry seal or a sealcoat? A slurry seal is about twice as costly as a sealcoat. One reason why slurry is more expensive than a sealcoat is that the slurry …
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accordance with current International Slurry Seal Association Technical Bulletin Number 106 and shall be 2.5 cm, plus or minus 0.5 cm. Calibration data as specified in III.B of herein shall be provided to the Engineer prior to placing the test strip.
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Section 520 - Slurry Seal 520.1 Slurry seal and all work shall be performed and conform to the provisions in Section 37-2, "Slurry Seal", of the Caltrans Standard Specifications and these Special Provisions. Aggregate shall be Type II spread at a rate of 14 pounds of dry aggregate per square yard.
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emulsion shall be pumpable and suitable for use in a Slurry Seal machine. The emulsified asphalt shall conform to the requirements of the ASTM specification for quick set CQS with revisions as indicated in the table below. In addition, the emulsion shall contain 3% minimum SBR latex solids based on weight of asphalt cement. The slurry seal ...
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Slurry seal is used to correct minor defects such as halts raveling, restores loss of matrix, and improves skid resistance. There are 3 types of slurry seal: Type 1 – Bike or walking trails, parking lots; Type 2 – Residential roadways; Type 3 – Highways, collectors, and arterial
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SLURRY SEAL SURFACE SPECIFICATIONS DESCRIPTION The Slurry Seal Surface shall consist of a mixture of emulsified asphalt, mineral aggregate and water, properly proportioned, mixed and spread evenly on the surface as specified herein and as ... Sieve Size Type II % Passing Sieve Size Type II % Passing 3/8 100 No. 30 30-50 No. 4 90-100 No. 50 18 ...
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