Presentation Summary Company History Concrete Basics USCPs Product

Presentation Summary - Company History - Concrete Basics - USCP’s Product Line / Highlights - Manufacturing Plant - Questions

US Concrete Products Started in 2000 Principals’ background with the Sakrete Company Did all company specialty product mix designs

Concrete Basics Its as simple at 1 -2 -3 1 part cement meeting ASTM C 150, 2 parts concrete sand meeting ASTM C 33, 3 parts coarse aggregate meeting ASTM C 33

ASTM Designations – Why they are important Cement meeting ASTM C 150 assures the proper chemical make up for consistency in performance and long term durability Foreign imported cements can be cheaper but you don’t know exactly what you are getting from shipment to shipment

ASTM Designations – Why they are important Aggregates meeting ASTM C 33 gradation requirements assures the proper particle size distribution Proper particle sized distribution is critical to produce concrete with long term durability

ASTM C 33 – Concrete Sand Sieve (Specification E 11) Percent Passing 9. 5 -mm (3⁄8 -in. ) 100 4. 75 -mm (No. 4) 95 to 100 2. 36 -mm (No. 8) 80 to 100 1. 18 -mm (No. 16) 50 to 85 600 -μm (No. 30) 25 to 60 300 -μm (No. 50) 5 to 30 150 -μm (No. 100) 0 to 10

ASTM C 33 – #8 or 3/8” Aggregate Sieve (Specification E 11) Percent Passing 12. 5 -mm (1/2 -in. ) 100 9. 5 -mm (3/8 -in. ) 85 -100 4. 75 -mm (No. 4) 10 -30 2. 36 -mm (No. 8) 0 -10 1. 18 -mm (No. 16) 0 -5 600 -μm (No. 30) 300 -μm (No. 50) 150 -μm (No. 100)

Total Particle Size Distribution 7 different sizes total between 3/8” #50 sieve Cement fills the voids between the particle sizes

Total Particle Size Distribution – Why is this important? The matrix created helps assure the long term durability of the concrete Assures water addition is not excessive – too much fine aggregate needs more water Optimizes the use of materials

Typical Sand Gradation – Competitors use Sieve (Specification E 11) Percent Passing 9. 5 -mm (3⁄8 -in. ) 100 4. 75 -mm (No. 4) 100 2. 36 -mm (No. 8) 100 1. 18 -mm (No. 16) 50 to 85 600 -μm (No. 30) 30 to 40 300 -μm (No. 50) 0 to 10 150 -μm (No. 100) 0

Why do they use this gradation? Most of the major suppliers have their sand dried by another company The sand used is conveyed pneumatically Multiple particle sizes as defined by ASTM C 33 would segregate in the pnuematic conveying process

How do we know this? USCP dries aggregate for major competitors

What are full depth concrete repair materials? Full-Depth Repairs 4. 0 Material Considerations Typical full-depth repair operations utilize concrete mixes containing 390 -502 kg/m 3 (658 -846 lbs/yd 3) of either cement Type I or Type III cement. A set-accelerator is frequently used to permit opening in 4 to 6 , the concrete mixture for full -depth repairs should have the following properties: 6. 5 ± 1. 5 percent of entrained air in the concrete (less air may be permissible in nonfreeze areas). 50 to 100 mm (2 to 4 in. ) slump hours. . Regardless of the mix design used Mixes using Type III cement may require slightly more mix water than a similar mix with Type I portland cement. However, too much extra water may cause the concrete to suffer from high shrinkage during curing. A water-reducing admixture will disperse cement particles and reduce the water necessary for workability. Above can be found at http: //www. fhwa. dot. gov/pavement/full 4. htm. Pvement Technology on FHA website.

Deck Mix line for full depth repair - Engineered concrete in pre-packaged form Single component Graded coarse & fine aggregates for proper particlesize distribution ASTM C 33 concrete sand with gravel meeting ASTM #8 (3/8”) AE - 80 lb. bag, . 61 cu. ft. FP – 50 lb. Bag, . 42 cu. ft. (neat). 52 cu. ft (ext) Air-entrained Corrosion inhibitor

Full Depth Repair Deck Mix AE & FP Deck Mix AE – Air Entrained Concrete with Corrosion Inhibitor Deck Mix FP – Air Entrained with Corrosion Inhibitor, designed specifically form and pump applications

Features of Deck Mix AE & FP: Just add water Contains gravel Water/Cement ratio of. 37 Air entrained Shrinkage Compensated 6” slump at time of placement Corrosion Inhibitor

Technical Information-Deck Mix Ae Length Change (ASTM C 157 - dry cured): -0. 028% @ 28 days 6. 5% Air Entrainment (+/- 1. 25%) Compressive strength (ASTM C 39 - 6”x 12” Cylinders) : 1 day 2000 psi 7 days 4000 psi 28 days 6000+psi Bond strength (ASTM C 882) : 1 day 350 psi 7 days 890 psi 28 days 1800+psi

What is HP Cement? A very fast setting portland cement based system 30 minute final setting time Free of sulfates (Gypsum) and high alumina cement

What Makes HP Cement Unique? Very low heat of hydration Very low shrinkage Excellent durability and resistance to freeze thaw cycling Economical Includes a corrosion inhibitor

Benefits from a low exotherm: Eliminates thermal cracking Setting times are less affected by ambient temperatures Predictability of setting times

HP Concrete Full depth fast setting concrete Just add water 6”+ slump Manufactured with 3/8” pea gravel Excellent resistance to freeze thaw cycling Coatings(100% Solids) applied within 24 – 48 hours

HP Concrete Mix Properties 6 -8” slump 6. 5% air content. 38 water/cement ratio

HP Concrete - Technical Information: Compressive Strength (ASTM C 39) : 2 Hours 2750 psi 1 Day 4500 psi 7 Days 5000 psi 28 Days 6000 + psi

HP Concrete - Technical Information: Freeze thaw cycling - (ASTM C 666): Loss RDM 25 cycles 50 cycles -. 02% -0. 025% 100% 100 cycles -0. 028% 104% 300 cycles -0. 08% 101%

HP Concrete - Technical Information: Length change (ASTM C 157 – dry cured): 1 day 0. 0011% 28 days 56 days 150 days -0. 023% -0. 025%

Project References – HP Concrete: Logan Airport Runway Repairs Gate Areas Centerline Lighting Replacement

Project References: HP Concrete MAA - BWI Main Terminal Parking Deck Full-Depth Repairs VStructural / Parsons Engineering Quest Communications Garage Full-Depth Column Repairs Consolidated Waterproofing / SK & A

Project References: Deck Mix AE DHL Service Center – New York, NY Full-Depth Repairs Structural Preservation / Mc. Mullen Watergate at Landmark – Wash, DC Balcony Overlays and Full-Depth Concrete Protection & Restoration / TCE

Reliable Consistent Flexable