SECTION 401
3.1.4.5 When the plant is to be operated in other than daylight hours, adequate lighting shall be provided in all areas
frequented by the inspector during his normal routine. Specific areas to be illuminated include the truck loading zone and
sampling location. A light or lights shall also be located so as to allow the clear observance of the truck bady lubrication
operation.
3.1.5 Scheduling Inspection Personnel - General.
3.1.5.1 The Contractor shall notify the Bureau of Materials and Research at least three working days in advance of starting
paving operations to allow sufficient time to schedule required plant inspection personnel. When paving bridge decks that have
barrier membranes, this notice shall include the name of the membrane product so that the mix temperature may be established.
3.1.6 Access to Production Facilities — General.
3.1.6.1 The Engineer shall have access at any time to all parts of the plant for inspection of the conditions and operations
of the plant, for confirmation of the adequacy of the equipment in use, for verification of proportions and character of materials,
and for determination of temperatures being maintained in the preparation of the mixtures. The Contractors shall provide a
suitable building, room, or trailer for exclusive use by the DOT Technician as a testing laboratory in which to house and use the
testing equipment. Laboratories shall be in an approved location, with one laboratory provided for each plant.
3.1.7 Field Laboratories — General.
3.1.7.1 Field laboratories shall meet the following minimum requirements:
Outside Method Requirements: 16 fi long by 8 ft wide [or equal] by 7 ft high (4.8 m long by 2.4 m wide by
Dimensions: 2.1 m high).
Performance Requirements (QC/QA): Laboratory shall consist of a minimum of 200 fi? of floor
-....Sbace, laid out to accommodate shelves, benches, desk, equipment and personnel movement,
Iwo, with locks and screens, providing cross ventilation. co
One, with lock and screen.
_ Adequate lighting and,
n _._Unit size shall be as reco
Heat: ___________ Thermostatically controlled to maintain a minimum ten
Weatherproofing: Roof, sides, and floor shall be maintained weatherproof at all times.
Appurtenances: a) An exhaust fan and hood over the extractor. The hood shail be large enough to cover the extractor.
The fan shail be a high-volume axial-flow fan, at least 10” in diameter, and of sufficient capacity to
vent the fumes adequately.
b) Free wall space of at least 12 ft*; or a bulletin board of equal area for posting notices and job mix
formulas.
Method Requirements: Suitable shelves and benches. One bench shall be approximately 24” wide X
36” high and at least 10 ft long. The bench may extend the length of the building.)
Performance Requirements (QC/QA):Suitable shelves and benches. Bench space shall be
approximately 24” wide by 36” high. There shall be a minimum total length of 19 ft of bench space.
ended for size of the facility. So
_Air Conditioner: _ ee
minimum temperature of 68°F (20°C),
3.1.7.2. The following office furnishings and testing equipment shall be provided:
(a) Electronic balance with tray, at least 300 oz net capacity, sensitive to 0.003 oz.
(b) Desk and chair in good working condition.
(c) Set of U.S. Standard brass sieves, each sieve being 12” in diameter and 1- 1/2” high. The set shall consist of
one each of the following sizes: 1- 1/2”, 1-1/4", 1”, 3/4”, 1/2", 3/8”, No. 4, No. 8, No. 16, No. 30, No. 50,
No. 100, No. 200, with pan and cover.
(d) Motor driven shaker for 12” diameter sieves. Shaker shall meet the following requirements: Rotating
turntable, tilt to 45 degree angle and have hammers to tap each sieve during operation.
(ce) Motor driven centrifuge extractor, 100 oz capacity with variable speed up to 3600 rpm, with filter rings and
non-toxic solvent approved by the Bureau of Materials and Research,
(f) Tachometer readily available to check the speed of the extractor.
(g) Automatic timer with interval of 0 to 30 minutes.
(h) Bristle brush for cleaning No. 200 sieve.
(i) Brass brush for cleaning 8” diameter sieves.
Qj) Five pans or bowls, approximately 4” high, 15” round or square.
(k) Spatula, large spoon, garden trowel, measuring scoop, and 1 quart pitcher.
(1) Fire extinguisher, minimum five pound dry chemical.
2016 NHDOT
GoTo=} TOC Division 100 Division 200 Division 300 Division 490 Standard
Division 500 Division 600 Division 700 Specifications
