Wisconsin WisDOT Standard Specifications (within FDM) — Section 519

Effective with the December 2018 Letting 299 2019 Standard Spec ifications Section 519 Brick Masonry and Concrete Brick or Block Masonry

519.1Description

(1)This section describes furnishing and laying brick or concrete brick or blocks in c ement mortar beds to

construct manholes, inlets, or other similar drainage structures, or parts thereof.

519.2Materials

519.2.1 Clay or Shale Brick

(1)Conform to ASTM C32 , grade MS.

519.2.2 Concrete Brick a nd Block Masonry Units

(1)Conform to ASTM C139 as revised here in 519.2.

(2)For concrete used in footings , furnish grade A, A-FA, A-S, A-T , A-IS, A-IP, or A-IT concrete

conforming to 501 as modified in 716. Provide QMP for class III ancillary concrete as specified in 716.

(3)For the concrete of these units, use sized, graded, proportioned, aggregates thoroughly mixed in a

batch mixer with the required pr oportions of cement and water, to produce a homogeneous concrete mixture of a quality that the br ick or block units conform to t he following requirements:

1.Have a minimum compressives trength of 5000 psi (average of 3 units) at 28 da ys or at the time

incorporating into the work if less than 28 days.

2.The maximum water absorpti on shall not exceed 6 percent by weight.

3.If steam curing the brick or block units, reduce the temper ature at a rate not to exc eed 40 F per hour until

within 20 F of the outside temper ature. Maintain the units at a temperature above 32 F during the first 6 days after curing.

4.Identify masonry units conforming to these specifications b y stamping a mark on each unit, a pigment color

code, or other engineer-approved markings.

5.Use either rectangular block units, or block units curved i n shape with the inside and outside surfaces

curved to the required radii. For corners use blocks with a ret urn side not less than 1/2 the length of the normal block. Curved blocks sha ll have inside an d outside surfa ces parallel.

6.Each block shall have a lengt h of not more than 18 inches, a height of not more than 8 inches. The block

width or multiple block widths shall at least equal the structure width the plans show.

7.If using blocks in the cones , or tops of manholes, or other structures, they may hav e any shape required to

form the structure as the plans show with inside and outside jo ints not more than 3/8 inch thick. Also, design the block so that only fu ll-length or 1/2-length units a re required to lay any one course. 519.2.3 Mortar 519.2.3.1 Cement

(1)Furnish masonry cement conforming to ASTM C91 , typeS.

(2)Furnish hydrated lime conforming to ASTM C207 .

519.2.3.2 Sand

(3)Use sand conforming to 501.2.5, except as follows:

- Ensure that sand subjected to the mortar strength test has a tensile or compressives trength at 3 days and 7 days of not less than 85 perc ent of that developed by mortar of the same proportions and consistency, made of the same cement a nd standard Ottawa sand. - Use sand uniformly graded fr om coarse to fine conforming to t he following gradation requirements: SIEVE PERCENT PASSING BY WEIGHT No. 8 ......................................................... ............................................................... .................................. 95-100 No. 100 ....................................................... ..................................................................................... 25 maximum No. 200 ....................................................... ..................................................................................... 10 maximum 519.2.3.3 Mortar

(1)Use mortar composed of 3 par ts of sand for mortar, and one par t of either a mixture of 50 percent

portland cement and 50 percent mas onry cement, or a mixture of 75 percent portland cement and 25 percent hydrated lime.

(2)Use a machine to mix the mortar unless the engineer allows oth erwise. Prepare machine-mixed

mortar in an engineer-approved mi xer and mix not less than 1 1/2 minutes. If preparing hand-mixed mortar, mix the sand and cemen t thoroughly in a clean, tight mo rtar box until unifo rm in color, then add clean water in a quantity that fo rms a stiff paste. Do not use mortar mixed longer than 30 minutes or that develops its initial set.

Effective with the December 2018 Letting 300 2019 Standard Spec ifications 519.3 Construction

(1)Unless the plans or contract p rovides otherwise, construct con crete footings, not less than 6 inches

thick, and that cover the entires tructure area under all brick or concrete block masonry.

(2)The contractor shall not constru ct brick or block masonry in f reezing weather or if the bricks or blocks

contain frost, except with the engineer’s written permission an d subject to the conditions the engineer requires.

(3)Before laying, thoroughly wet b ricks or blocks and let the sur face dry just enough to prevent slipping

on the mortar.

(4)The contractor shall not use broken or chipped bricks or blocks on the structure faces except if using

to shape around irregular openings.

(5)Lay the first course of bricks or blocks on a full bed of mort ar. Lay bricks or blocks in courses with full

and close mortar joints. Maint ain horizontal courses throughout the structure. Adjoining courses shall break joints by 1/2 the length o f a brick or block, if possible . Make at least one course in every 7, for double-wall construction, all heade rs. If using brick for makin g closures, make their length not less than the width of a whole brick and, if possible, make closures with whole brick as headers.

(6)Do not make joints more than 1/2 inch thick and use a uniform thickness throughout the structure.

Finish joints properly as the work progresses and on exposed fa ces strike them neatly using the "weather" joint, except if a pla ster coat is required rake the joint.

(7)Apply a plaster coat of mortar to the interior and exterior su rfaces of brick, concrete brick, or block

masonry, in manholes, inlets, and similar drainage structures. Make this plaster coat with the same mortar used in laying the bricks or blocks and make it not less than 1/2 inch thick. Before applying a plaster coat to a brick or block surface, wet them with water a nd let the surface dry enough to bond to the plaster coat.

(8)As soon after applying the plaste r coat to a str ucture as possible, apply a uniform coating of curing

compound conforming to 501.2.9 to the interior and exterior surfaces. 519.4 (Vacant)

519.5Payment

(1)The department will not pay direc tly for providing and laying brick masonry or concrete brick or block

masonry specified under this section. This work is incidental to the various bid items using it.

Effective with the December 2018 Letting 301 2019 Standard Spec ifications Section 520 Pipe Culverts

520.1Description

(1)This section describes providing culvert pipe, cattle pass, an d apron endwalls where the material used

is a contractor option; providi ng and removing temporary culvert pipe; and cleaning existing culvert pipes.

520.2Materials

520.2.1 Culvert Pipe

(1)Furnish culvert pipe consisten t with the diameter the bid item indicates. Furnish materials for the

various classes of pipe as follows: TABLE 520-1 ALLOWABLE MATERIALS FOR CULVERT PIPE

CLASS ALLOWABLE MATERIALS III Class III reinforced concrete , corrugated steel pipe of the thickness contract designates III-A Class II and Class III reinforced c oncrete, corrugated steel of the thickness the contract designates, corrugated polyethyle ne, corrugated polypropylene III-A Non-metal Class II and Class III reinforced c oncrete, corrugated polyethy lene, corrugated polypropylene III-B Class III reinforced concrete, co rrugated steel of the thickness the contract designates, corrugated polypropylene III-B Non-metal Class III reinforced concrete, corrugated polyp ropylene IV Class IV reinforced concrete, corrugated steel pipe of the t hickness contract designates V Class V reinforced concrete, co rrugated steel pipe of the thickness contract designates

(2)For the given materials, conform to the following:

Corrugated st eel pipe ......................................... ......................................................................................... 521.2 Reinforced conc rete pipe ...................................... ....................................................................................... 522.2 Corrugated polyeth ylene pipe .................................. .................................................................................... 530.2 Corrugated polypro pylene pipe ................................. ................................................................................... 530.2

(3)Under the Culvert Pipe Temporary bid items, use either new or used culvert pipe in a condition

suitable for the purpose intended. 520.2.2 Pipe Cattle Pass

(1)Under the Pipe Cattle Pass bid item, if the plans do not designate a specific material, the contractor

may use either corrugated steel o r reinforced concrete. For the given materials, conform to the following: Corrugated steel pipe cattl e pass ............................. ................................................................................... 521.2 Reinforced concrete pipe cattle pass .......................... ................................................................................. 522.2 520.2.3 Apron Endwalls for Culvert Pipe

(1)Under the Apron Endwalls for Cul vert Pipe bid items, use steel apron endwalls for corrugated steel,

corrugated polyethylene, and corr ugated polypropylene pipe culvert installations, and use concrete apron endwalls with concrete pipe culvert installations. For th e given materials, conform to the following: Steel apron endwalls .......................................... ......................................................................................... 521.2 Concrete apron endwalls ....................................... ...................................................................................... 522.2 520.2.4 Concrete Pipe Colla rs and Cattle Pass Walkways

(1)For concrete collars and cattle pass walkways, furnish grade A , A-FA, A-S, A-T, A-IS, A-IP, or A-IT

concrete conforming to 501 as modified in 716. Provide QMP for class III ancillary concrete as specified in 716. 520.2.5 Backfill 520.2.5.1 General

(1)Submit daily quantities for ma terial requiring department testing to the engineer as follows:

- For foundation backfill. - For trench backfill not obt ained from the excavation.

Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 308–309 of 601.

← Previous

517 Paint and Painting

520 Pipe Culverts