Specifications

#S Y L C R E T E E V E X T R A V A L U E C O L D M I X
S p e c i f i c a t i o n s

SYLCRETE EV is a performance guaranteed cold mix asphalt for the year 'round overlays and the repair of potholes and utility trenches in both asphalt and concrete.
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P E R F O R M A N C E F E A T U R E S

Workable down to -10 F
Sticks to wet potholes
Full year stockpile life
Can be paved over
Hot mix adhesion
No tack coat needed
Guaranteed 95% effective
Does not stip in water

M A T E R I A L S

A: Aggregates
Aggregates will consist of approved crushed aggregate, complying to AASHTO M43 (aggregate size designation) modified in the following manner in accordance with ASTM C- 136 standard test method.*

Sieve	#9 Patching Gradation % Passing	#89 Patching Gradation % Passing	Overlay Gradation % Passing
1/2 inch	.	100	100
3/8 inch	100	90-100	85-100
# 4	85-100	20-55	50-70
# 8	10-40	5-30	.
#10	.	.	32-42
#16	0-10	0-10	.
# 30	0-7	0-7	.
#40	.	.	11-26
# 50	0--5	0-5	.
# 80	.	.	4-14
- 200 (sieve)	0-2.5	0-2.5	1-6

Physical Properties	.	.
ASTM C-88	Soundness Loss (Sodium-5 Cycles)	12.0% Max.
ASTM C- 131	Los Angeles Abrasion Loss	45.0% Max.
ASTM C-127-28	Absorption	0.05%-2.0%
ASTM C-127-28	Specific Gravity	2.45-2.80
.	.	.

Other Deleterious Matter	.	.
ASTM C- 123	Soft pieces	3.0% Max.
ASTM C-295	Coal and Lignite	1.0% Max.
ASTM C- 142	Shale, Chirt, Shady Material, etc.	2.5% Max.

* Depending upon the intended application, alternate aggregate gradations and specifications may be recommended by Sylcrete Corporation.

B: Bituminous Material
The bituminous Material shall be SYLCRETE-EV Liquid Asphalt Blend from Sylcrete Corporation. When prepared from a base stock of either 85-100 pen, 120 150 pen, AC-10, AC-20, AR-2000 or AR-4000, and blended in accordance with and approved by Sylcrete Corporation, it shall meet the following requirements.

ASTM D-1310	Flash Point (TOC): 275 F Minimum
ASTM D-2170	Kinematic Viscosity at 60 C (140 F): 300-4000
ASTM D-95	Water: 0.2% Maximum
ASTM D-402	Distillate Test (Volume of original sample): To 225' C (437 F): None To 260' C (500 F): O-5% To 315' C (600 F): O-25%
Residue Tests	.
ASTM D-2171	Abs. Viscosity at 60 C (140 F): 125-425 Poises
ASTM D-5	Penetration: 180 Minimum (using cone method)
ASTM D-113	Ductility at 21 C (70 F), 1 cm/min.: 100 Minimum
ASTM D-2042	Solubility in Trichloroethylene: 99% Minimum

S T R I P P I N G T E S T

A suitable size test sample of the plant mixed material shall be permitted to cure to normal laboratory temperature after which it shall be placed in a glass jar, completely flooded with distilled water, and fitted with a tight cover. The jar and contents shall be allowed to stand for a period of 24 hours at normal laboratory temperatures (approximately 70 F or 21 C). The sample jar shall then be agitated for a period of 60 seconds. The water shall then be poured from the jar and the sample removed to a flat surface and be permitted to air dry after which it will be visually examined for stepping of the bituminous film from the aggregate. The aggregate shall be at least 95% coated with bituminous film.

C O M P O S I T I O N OF M I X T U R E

The mixture shall consist of an aggregate conforming to MATERIALS Section A, and a bituminous material conforming to MATERIALS Section B. The mixing ratio shall be to 6.0% liquid blend or 120 lbs. per finished ton. The approved formula shall have an allowable variation of not more than the following minimum and maximum ranges:

.	Minimum	Maximum
Job Mix Formula	4.5% (90 lbs/ton)	7.0% (140 lbs/ton)
Residual Asphalt (ASTM D-2172)	3.0%	6.5%

P R E P A R A T I O N O F M I X T U R E

The approved aggregate should be surface dried. When heat is applied, the mixed temperature shall not exceed 175 F without the authorization of a Sylcrete Corporation representative. The asphalt blend shall be heated to a temperature of between 150 F and 250 F in accordance with the instructions of a Sylcrete Corporation representative. The mixture shall be mixed until all of the aggregates are uniformly coated.

S T O C K P I L E L I F E A N D P R O C E D U R E S

Following production, SYLCRETE-EV Cold Mix should be allowed to cure at ambient temperature levels prior to use, by storing 24-48 hours in not higher than 6 ft. piles. Once ambient temperature levels are reached, SYLCRETE-EV Cold Mix can be mounded into a single normal height stockpile. The SYLCRETE EV Cold Mix stockpile life is one year from date of production when applied in the same or a warmer ambient temperature range originally designed for the mix. If a mix is originally designed for 20-40 F usage, it can be used for a full 12 months in the same or warmer conditions. However, if a mix is designed for 80-100 F usage, it will be usable 12 months later in that same temperature range, but will not be usable in substantially lower, interim temperatures. SYLCRETE-EV Cold Mix may be stored in an uncovered stockpile of 100 tons or more up to one year. However, in severely cold environments it may be necessary to either cover SYLCRETE-EV Cold Mix stockpiles, or allow quantities of SYLCRETE-EV Cold Mix to be stored at a minimum of 50 F for up to 12 hours prior to application, in order to eliminate ice crystals in the material.

P L A N T A N D E Q U I P M E N T

Storage facilities and all equipment used in the preparation of the mixture shall be approved by the local governing agency. The materials for individual batches shall be measured accurately either by volume or by weight, using approved methods and equipment. A batch type mixer, drum mixer, continuous mixer, or portable pug mill, of approved design and capacity shall be used in mixing the ingredient materials. An approved dryer shall be available for surface drying the aggregate.

H A N D L I N G P R O C E D U R E S

During the production of SYLCRETE-EV Cold Mix, and the production or handling of SYLCRETE-EV Liquid Blend, normal industry-wide safety precautions such as the prohibition of cigarette smoking, and any other form of ignition or combustion, should he strictly enforced in the general vicinity of such operations. In addition, any asphalt materials used in the production of SYLCRETE-EV Cold Mix Liquid Blend shall not exceed 350' F in temperature. The application of SYLCRETE-EV Cold Mix shall be performed without the addition of supplemental heat. Any effort to heat SYLCRETE-EV Cold Mix prior to or during application could adversely affect performance.