CEMENT INDUSTRIES, INC.

SCOPE: The tabular values listed below represent the thermal resistance (R) and the thermal

Thermal Properties of Spancrete

p ( )transmittance (U) values for the various Spancrete cross sections.

CRITERIA: Tabulated values are based on generally accepted thermal conductance values fornormal weight concrete and are determined for the product only, with no air films or insulation.

resistance of the individual layers. The PCI Design Handbook lists thermal properties for various types of building materials.

Due to its density, Spancrete has the capacity to absorb and store large quantities of heat.

APPLICATION: The overall thermal resistance of a floor or roof section is the sum of the

This results in energy savings and should be considered in the design of heating and coolingequipment Thermal storage effects are also addressed in the PCI Design Handbook

R & U VALUE CHART FOR SPANCRETE HOLLOWCORE SLABS

equipment. Thermal storage effects are also addressed in the PCI Design Handbook.

Thickness R Value U Value

8" STANDARD SPANCRETE 1.03 0.97 6" STANDARD SPANCRETE 0.96 4" STANDARD SPANCRETE 0.85 1.18

1.04

8" ULTRALIGHT SPANCRETE 1.11 0.910" STANDARD SPANCRETE 1 16 0 86

10" ULTRALIGHT SPANCRETE 1.16 0.86 12" STANDARD SPANCRETE 1.28 0.78 12" ULTRALIGHT SPANCRETE 1.21 0.83

10 STANDARD SPANCRETE 1.16 0.86

15" STANDARD SPANCRETE 1.3 0.77

PHONE (239) 332-1440 (800) 332-1440 FAX (239) 332-0370POST OFFICE BOX 823 FORT MYERS, FL 33902-0823

CEMENT INDUSTRIES, INC.

Acoustical Properties of Spancrete

SCOPE: The following tables contain values for the Sound Transmission Class (STC) and theg ( )Impact Insulation Class (IIC) of various floor systems utilizing Spancrete hollowcore slabs.

CRITERIA: The values for the Sound Transmission Class were determined by tests which were

with ISO recommendation R 140 (E), and the values were computed in accordance with ASTMin accordance with ASTM E90. The Impact Insulation Class tests were done in accordance

RM 14-4 and HUD FT/TS-24

transmission and is highly dependent on the floor surface and structural connection details.

RM 14 4, and HUD FT/TS 24.

As with the STC the higher IIC values are more desirable Refer to the PCI Design Handbook

APPLICATION: The STC is a measure (in decibels) of the ease at which airborne sound istransmitted through a floor system. The larger the value of the STC for a given system, the greater the sound insulation. The Impact Insulation Class is the resistance to impact noise

506" SPANCRETE

SOUND TRANSMISSION CLASS (STC)

As with the STC, the higher IIC values are more desirable. Refer to the PCI Design Handbookfor further expanded acoustical applications.

50515659

6" SPANCRETE 6" SPANCRETE + 2" TOPPING - 150 P.C.F. 8" SPANCRETE 8" SPANCRETE + 2" TOPPING - 150 P.C.F.

74

IMPACT ON CONCRETE DIRECT

IMPACT ON .058" VINYL TILE IMPACT ON 40 OZ. WOOL CARPET

31

50

84

26

48

IMPACT INSULATION CLASS (IIC)8" Slab with2" ToppingTypes of Floor System 8" Slab

74

89

+ 50 OZ. HAIR PAD84

IMPACT ON SHAG CARPET + FOAM RUBBER PAD

76

POST OFFICE BOX 823 FORT MYERS, FL 33902-0823PHONE (239) 332-1440 (800) 332-1440 FAX (239) 332-0370