2. Elastizell of St. Louis Solving Engineered Fill, Flooring & Roofing problems for over 40 years.

3. Types of Lightweight Concrete Well Discuss Gypsum Concrete Gypsum Based Density – 120 pcf Strength Varies from 1000 – 8000 PSI Cellular Concrete Portland Cement Based Varies in Density- 20 to 120 pcf Strength Varies from 1000 – 3000 PSI

4. Characteristics of Cellular Concrete Strong & lightweight Batched on site Easy to apply Has many densities Designed density does not vary

6. Uses for Cellular Concrete Engineered Fills Flooring Roof Decks

7. Differences of Cellular Concrete Engineered Fills Strength Varies from 40 to 1000 psi Density Varies from 20 to 70 pcf Roof Decks Minimum Strength 160 psi Density Varies from 36 to 50 pcf Flooring Strength 1000 to 3000 psi Density is 100 - 125 pcf

8. Advantages of Cellular Concrete Cost Savings Faster Installation Load Balancing to Increase Elevations No Compaction Required Flowability Characteristics Low Density - as low as 20 pcf Maintain Traffic During Construction

9. Engineered Fill Roadways Bridges Voids Tunnels Retaining Walls Soil Stabilization Plaza Fills BeforeAfter

10. St. Louis Arch Project

11. Bridge Approach Fills Poor soils usually exist at bridges Compaction is not necessary Replace longer bridge with roadway Reduce maintenance and life cycle costs

12. Roadway Fills Cellular Concrete is excellent for widening roadways with shoulders that have never been preloaded Load balancing removes existing heavy soil and replaces it with much lighter Cellular Concrete

13. Void Fills Because Cellular Concrete flows, it completely fills voids. Basements Tanks Sinkholes Pipeline abandonment Fills around pipes, Annular space fills of one pipe within another.

14. Swimming Pool Void Fill

15. Insulating Roof Deck Systems Slope to drain eliminates ponding Lightweight High R value Low cost Superior to insulation board

16. Roof Deck Problems & Solutions

17. Advantages Over Other Roof Insulation Systems A solid base for roofing systems Reduced dead weight Slope to drain capability Fire, seismic & wind uplift ratings Does not require slotted steel decks

18. More Advantages of Cellular Concrete Roof Decks No Ridges Maintains R value Not damaged by water No need to remove old membrane Several membranes can be placed Cost

19. LIGHT WEIGHT CONCRETE FLOORS

20. What are Lightweight Concrete Floor Toppings? Gypsum Concrete Gypsum Based Density – 120 pcf Varies in Strength – 1000 – 8000 PSI Cellular Concrete Portland Cement Based Varies in Density- 100 to 125 pcf Varies in Strength – 1000 – 3000 PSI

21. GYPSUM CONCRETE FLOORS

22. What is Gypsum? Hydrated Calcium Sulfate CaSO 4 2H 2 O Natural Chemical Synthetic

23. Gypsum Concrete Flooring Specially formulated gypsum concrete plaster Chemically sets (does not cure) Does not shrink 1000-8000 compressive strengths

24. Gypsum Concrete Floors Pumped Poured Feather edge Up to 3

25. CELLULAR CONCRETE FLOORS

26. Cellular Concrete Floors Portland Cement Based Calcium Silicate Hydrated Ca SiO3 Natural Chemical

27. Cellular Concrete Floors Portland cement based Resists abrasive damage Not damaged by water – below grade Steel trowel finish 1000-3000 compressive strengths

28. Lightweight Concrete Floor Toppings Trade ready next morning Excellent substrates Economical Lightweight Fire resistant Sound rated

29. Perform density/slump test Take test cylinder/cube sample on job site Quality Controls & Tests

30. New & Rehab Lightweight Concrete Applications Multifamily Apartments Condos Hotels Senior Living Commercial Office Building Hospitals Residential Custom Homes Radiant Heating

31. Solutions for Rehab Projects Out of Level Substrates Load Limited Structures Sound Mat Option Plaza Decks

32. Decorative Surfaces Gypsum Concrete Stain the surface Seal the surface Cellular Concrete Integral Color Stain the surface Seal the surface

33. The Construction Trend…. Lighter Weight Materials Thinner Floors Gypsum Light Weight Concrete Light Weight Decking Light Weight Joists

34. Sound Control Issues

35. Airborne and Structure Borne Noise Airborne = STC Structure Borne = IIC ( Impact Noise)

36. Sound Measurement and Peoples Reaction STC Sound Transmission Class If the STC = 35 clearly hear conversation If the STC = 45 conversation is muddled If the STC = 55 wont hear conversation; can still hear loud sounds such as raised voices, bass music or television

37. Sound Measurement and Peoples Reaction IIC Impact Insulation Class If the IIC = 40 then 30 % of people will be happy If the IIC = 50 then 50 % of people will be happy If the IIC = 60 then 70 % of people will be happy

38. Intensity, or loudness Generally expressed in dBs dBs = a range of sound from very quiet to very loud dB, dBA, dBC, others

39. Range of Sounds Whisper – 20 dB Kitten Meow – 40 dB Soft Music – 60 dB Restaurant Conversation– 80 dB Traffic Noise – 100 dB Jet Aircraft – 120 dB

41. Hard Finished Flooring Trends Tile and Vinyl Tile Hardwood and Laminate Floors Concrete

42. Is Sound Control an Amenity ? Yes ! Poll of Residents - # 1 Preference Peace and Quiet Biggest Problem – Vertical Sound Transmission Floor to Floor

43. Building Codes ICBO, BOCA, and SBCCI = IBC Code St. Louis City and County are moving to IBC Code Code Requires minimum performance IIC and STC for Floors of 50

44. Other Sound Improvements Improvement IICSTC Resilient Channels RSIC vs. RC-15 to 71 to 2 Insulation Mineral Fiber vs. FG1 to 31 to 2 Thickness 3 to 61 to 20 to 1 Ceiling Drywall 1 to 2 Layers4 to 51 to 2

45. Typical IIC Values Rehab Concrete 6 to 8 inches No Sound Mat FIIC 33 to 37 With Sound Mat – FIIC 58 to 68 Rehab Heavy Timber Floors No Sound Mat FIIC 30 to 35 With Sound Mat – FIIC 45 to 50 Mass/Weight Does not Improve IIC Mass Improves STC

46. Sound Control Summary Impact noise is harder to control Sound mat controls impact noise Mass does NOT control Impact noise Meeting code doesnt mean meeting client expectations Sound mats are The Best Choice

47. Lightweight Concrete Summary Floor Fills Fire Rating Sound Attenuation Rehab Roof Decks Permanent Slope to Drain Engineered Fills Geotechnical Solutions Low Cost Alternative Design Assistance