57
Earthcore Industries
MAGNUM Series Fireplace
Specialty Applications – Reduced Height Fireplace Opening
The Isokern Fireplace can have a reduced height opening by removing one layer of backwall and side walls from the
fireplace construction. All other construction for the fireplace will remain the same, as shown on pages 18-28.
(Figure
73)
Seismic Requirements (Slab On Grade)
PROCEDURE:
1.
Drill hole of proper diameter and depth using a carbide tipped drill or coring bit. Avoid any existing reinforcing steel by
relocating hole slightly.
(Figure 74)
2.
Clean hole thoroughly by vacuum or air pressure.
3.
Make sure that hole is dry and clean before grouting.
4.
Place epoxy grout in hole with caulking gun or similar.
equipment starting at bottom, fill hole approximately 2/3 full.
5.
Coat dowel with same epoxy grout and insert into hole, forcing material around the sides of the bar and completely
filling all voids.
6.
Provide support for dowel by trying to rebar or another element until grout has cured.
7.
Epoxy grout in CMU shall be Simpson set epoxy tie (ESR-1772), Hilti hit-hy 150 max (ESR-1967), or equal.
8.
Epoxy grout in concrete shall be hit-re 500-SD by Hilti corporation. (ESR-2322), Simpson set-xp (ESR-2508) or equal.
9.
Special inspection required.
(4x) #4 Vertical Rebar
Minimum. Place 2 in Each
Sidewall Cavity of Firebox
Fill Cavity with
f'c=2000psi
Concrete or Grout
PROCEDURE
1. DRILL HOLE OF PROPER DIAMETER AND DEPTH USING A CARBIDE TIPPED
DRILL OR CORING BIT. AVOID ANY EXISTING REINFORCING STEEL BY
RELOCATING HOLE SLIGHTLY.
2. CLEAN HOLE THOROUGHLY BY VACUUM OR AIR PRESSURE.
3. MAKE SURE THAT HOLE IS DRY AND CLEAN BEFORE GROUTING.
4. PLACE EPOXY GROUT IN HOLE w/ CAULKING GUN OR SIMILAR EQUIPMENT
STARTING AT BOTTOM, FILL HOLE APPROX.
2
3
FULL..
5. COAT DOWEL WITH SAME EPOXY GROUT AND INSERT INTO HOLE, FORCING
MATERIAL AROUND THE SIDES OF THE BAR AND COMPLETELY FILLING ALL
VOIDS.
6. PROVIDE SUPPORT FOR DOWEL BY TYING TO REBAR OR OTHER ELEMENT
UNTIL GROUT HAS CURED.
7. EPOXY GROUT IN CMU SHALL BE SIMPSON SET EPOXY TIE (ESR 1772), HILTI
HIT-HY 150 MAX (ESR 1967), OR EQUAL.
8. EPOXY GROUT IN CONCRETE SHALL BE HIT-RE 500-SD BY HILTI CORP. (ESR
2322), SIMPSON SET-XP (ESR-2508) OR EQUAL.
9. SPECIAL INSPECTION REQUIRED
Base Plate May
be Omitted
Rebar Must Be Sloped As Required and
Embedded Into Concrete Slab According To
Min. Requirements Shown in Procedural
Notes and Table Shown Below
Minimum Rebar
Requirements
Bar Size
Rod Size
(inches.)
Bit Dia.
(inches)
Min.
Depth
(inches)
#3
-
1/2
3
#4
1/2
5/8
3.5
#5
5/8
3/4
4
#6
3/4
7/8
6
-
7/8
1
8
-
1
1-1/8
9
SEISMIC REQUIREMENTS (SLAB ON GRADE)
Minimum Rebar Requirements
Bar Size
Rod Size (inches)
Bit Dia. (inches)
#3
-
1/2
#4
1/2
5/8
#5
5/8
3/4
#6
3/4
7/8
-
7/8
1
-
1
1-1/8
FIGURE 73
FIGURE 74
