EPCON C8. Cracked Concrete - Anchor Studs 43.1 CRACKED CONCRETE - CHEMICAL INJECTION 43.1 GENERAL INFORMATION

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Annis Myrtle Allen
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43.1 CRACKED CONCRETE - CHEMICAL INJECTION 43.1 GENERAL INFORMATION Product is a High Performance Pure Epoxy ing adhesive for use in Cracked and Non-Cracked concrete.

Benefits, Advantages and Features European Technical Approval option1 for use in cracked and non cracked concrete ETA-10/0309: Highest level of European approval for chemical anchors 100 Year design

dispensing with high flow (pneumatic) mixer Greater security: Highest performance in cracked concrete Versatile s all stud & bar diameters in all directions Oversized holes s in carbide drilled and

INSTALLATION RELATED 1 2 3 4 5 6 1. Drill recommended diameter and depth hole. 2. Important: Use Ramset Dustless Drilling System to ensure holes are clean.

1 43.1 CRACKED CONCRETE - CHEMICAL INJECTION 43.1 GENERAL INFORMATION Product is a High Performance Pure Epoxy ing adhesive for use in Cracked and Non-Cracked concrete. For structures subject to external exposure, permanently damp or aggressive conditions. Benefits, Advantages and Features European Technical Approval option1 for use in cracked and non cracked concrete ETA-10/0309: Highest level of European approval for chemical anchors 100 Year design life Approved for flooded holes Approved for floor, wall & overhead applications Data for Sustained Loading Greater productivity: s in dry, damp, wet or flooded holes No weather delays Fast,easy dispensing with high flow (pneumatic) mixer Greater security: Highest performance in cracked concrete Versatile s all stud & bar diameters in all directions Oversized holes s in carbide drilled and diamond cored holes For tropical and Cold weather conditions Greater safety: Low odour Non-flammable Fire Rated : Refer Fire rated anchoring section Installation PERFORMANCE RELATED MATERIAL INSTALLATION RELATED Drill recommended diameter and depth hole. 2. Important: Use Ramset Dustless Drilling System to ensure holes are clean. Alternatively, clean dust and debris from hole with stiff wire or nylon brush and blower in the following sequence: blow x 4, brush x 3, blow x 4, brush x 3, blow x Insert mixing nozzle to bottom of hole. Fill hole to 3/4 the hole depth slowly, ensuring no air pockets form. 4. Insert Ramset ChemSet Stud/rebar to bottom of hole while turning. 5. Allow to cure as per setting times. 6. Attach fixture. HCR Installation temperature limits: Principal Applications ing into cracked & non cracked concrete Road barrier hold down bolts Bridge refurbishment Road & Rail tunnel construction n Reinforcing bar from 8 to 32mm Starter Bars Threaded studs from M8 to M30 Threaded Stud material: Zn, A4 316, HCR steels Threaded Stud material: 5.8, 8.8, 10.9 grade Substrate: 5 C to 40 C Adhesive: 5 C to 40 C Load should not be applied to anchor until the chemical has sufficiently cured as specified. Service temperature limits: -40 C to 80 C Setting Times Temperature of Curing time in Curing time in Gel Time base material dry concrete wet concrete 5 C - 9 C 20 min 30 h 60 h 10 C - 19 C 14 min 23 h 46 h 20 C - 24 C 11 min 16 h 32 h 25 C - 29 C 8 min 12 h 24 h 30 C - 39 C 5 min 8 h 16 h 40 C 5 min 6 h 12 h ETA European Technical Approval ETAG 001 Part 5 Option 1 ETA 10/ CPD-0549 ETA European Technical Approval ETAG 001 Part 5 TR023 ETA 07/ CPD RAMSET

2 CRACKED CONCRETE - CHEMICAL INJECTION Installation and performance details: EPCON C8 and ChemSet Studs size, d b Drilled hole diameter, d h Fixture hole diameter, d f effective depth, h Tightening torque, T r (Nm) spacing, a c Optimum dimensions* Edge distance, e c Concrete substrate thickness, b m Reduced Characteristic Capacity Cracked Concrete Tension, N Rd,pc (kn) ** Concrete Compressive Strength, f' c 20 MPa 30 MPa 40 MPa M M M M M M M * For anchor spacings or edge distances less than the optimum, please refer to the simplified strength limit state design process to verify capacity. ** Tension values are based on service temperature limits -40 C to +40 C only. If service temperature limits is beyond this range please contact Ramset Engineer. WET HOLES in cracked concrete: Multiply N Rd,pc x DESCRIPTION AND PART NUMBERS ChemSet Studs and Threaded Rod size, d b length, L effective depth, h Fixture thickness, t Effective Length, L e Part Number GR 5.8 Zinc GR 5.8 Gal 316 S/S M CS08110 CS08110GH CS08110SS M CS10130 CS10130GH CS10130SS M CS12160 CS12160GH CS12160SS CS M CS16190 CS16190GH CS16190SS M CS20260 CS20260GH CS20260SS M CS24300 CS24300GH CS24300SS M CS30380* CS30380GH* CS30380SS* * Lead times apply Injection System Drilled hole depth, h 1 Description Cartridge Size Part No. h 1 = h h = Effective depth 450 ml C ENGINEERING PROPERTIES ChemSet Studs and Threaded Rod Size, d b Grade 8.8 Threaded Rod Stainless Steel High Corrosion Resistance HCR Grade / Threaded Rod UTS f u MPa Shank diameter, d s Stressed Area (mm 2 ) Yield Strength f y MPa Shank diameter, d s Stressed Area (mm 2 ) Yield Strength f y MPa UTS f u MPa Section modulus Z (mm 2 ) M M M M M M M Refer to "Engineering Properties" for ChemSet Studs Grade 5.8 and AISI 316 Stainless Steel on page RAMSET

3 STEP 1 Design tensile action effect, N* (kn) Select anchor to be evaluated Table 1a - Indicative combined loading - interaction diagram M12 M10 M8 M16 M20 M24 M30 Tension Notes: - Shear Limited by Grade 5.8 steel Notes: resistance - Tension limited by combined pull-out and ~ Shear limited by Grade 5.8 steel capacity. concrete cone resistance using nominal ~ Tension limited by concrete capacity depths using nominal depths. - No edge or spacing effects ~ No edge or spacing effects. - ~ f' f' c = 20 MPa c 20 MPa Design shear action effect, V* (kn) Table 1b - Absolute minimum edge distance and anchor spacing values, e m and a m for cracked concrete Min. spacing - a m Min. Edge Distance - e m Step 1c Calculate anchor effective depth, h Refer to Description and Part Numbers table for ChemSet Studs on page 43. Effective depth, h Preferred h = h n otherwise, h = L e - t h 6 * d h 1 t = total thickness of material(s) being fastened. size determined, absolute minima compliance achieved, effective depth (h) calculated RAMSET

4 STEP 2 Verify cracked concrete combined pull-out and concrete cone tensile resistance - per anchor Table 2a - Cracked Concrete reduced characteristic tensile capacity, N Rd,pc (kn) f'c = 20MPa Cracked Concrete combined pull-out and concrete cone resistance - N 0 Rd,p = N 0 Rk,p/Y Msp (kn) Y Msp = 1.8 Drill hole dia, d h Effective depth, h Bold values are at ChemSet Stud nominal depths. For capacity in non-cracked concrete, refer to pages Note: Effective depth, h must be 6 x drilled hole diameter,d h for anchor to acheive tabled shear capacities. Wet Holes in cracked concrete: Multiply N Rd.pc *0.70 N 0 Rd,p = N 0 Rk,p/Y Msp (kn) Y Msp = 1.8 N 0 Rd,c = N Rk,c /Y Mc (kn) Y Mc = 1.8 Table 2b-1 - Cracked concrete service temperature limits effect, tension, X ns If Service temperature limit is -40 C to +80 C then N Rd,pc = N 0 Rd,p If Service temperature limit is -40 C to +40 C then Refer to Checkpoint 2 Service temperature limits effect, tension, X ns where N Rd,pc = N O Rd,p (from Table 2a) Service temperature ( C) -40 C to +40 C C to +80 C Cracked Concrete Cone Resistance - N 0 Rd,c X ns where N Rd,pc = N O Rd,c (from Table 2a) Table 2b-2 - Cracked concrete compressive strength effect, tension, X nc Concrete compressive strength effect, tension, X nc where N Rd,pc = N O Rd,p (from Table 2a) f' c (MPa) X nc where N Rd,pc = N O Rd,c (from Table 2a) RAMSET

5 e X ne = *(e/h) Where e m e e c e c = 1*h Note: Tabled values are based on the nominal effective depth, h shown in the installation details. For other values of X ne, please use equation shown above. a X na = a/(4*h) Where a m a a c a c = 2*h Note: Tabled values are based on the nominal effective depth, h shown in the installation details. For other values X na, please use equation shown above. N N Table 2c - Cracked concrete Edge distance effect, tension, X ne Edge distance, e Table 2d - Cracked concrete anchor spacing effect, tension, X na spacing, a Design cracked concrete combined pull-out and concrete cone resistance, N Rd,p N Rd,p = N Rd,pc *X ns *X nc *X ne *X na If Service temperature limit is -40 C to +40 C then STEP 3 3 N Rd,p = minimum of N 0 Rd,p *X ns *X nc *X ne *X na and N0 Rd,c *X ns *X nc *X ne *X na Verify cracked concrete tensile resistance - per anchor Table 3a - Cracked Concrete steel resistance, tension, N Rd,s = N Rk,s / Ms (kn) Ms = 1.5 for Grade 5.8 and Grade 8.8 Carbon Steel Ms = 1.87 for M8 to M24 A4 316 Stainless Steel and Ms = 2.86 for M30 A4 316 Stainless Steel Ms = 2.6 for HCR Stainless Steel Grade 5.8 Carbon Steel Grade 8.8 Carbon Steel A4 316 Stainless Steel HCR Stainless Steel Design cracked concrete tensile resistance, N Rd N Rd = minimum of N Rd,p, N Rd,s Check N*/N Rd 1, if not satisfied return to step RAMSET

6 V STEP 4 Load direction effect, conc. edge shear, X vd b a >1,5. e Verify cracked concrete edge shear resistance - per anchor Table 4a - Cracked concrete edge resistance, shear, V 0 Rd,c = V 0 Rk,c / Mc (kn) Mc = 1.5, f' c = 20 MPa Effective depth, h Edge distance, e m For capacity in Non-cracked concrete, refer to pages Table 4b - Cracked concrete compressive strength effect, shear, X vc f' c (MPa) X vc Table 4c - Cracked concrete load direction effect, concrete edge shear, X vd Angle, X vd Table 4d - Cracked concrete anchor spacing and edge distance effect, concrete edge shear, X ve For single anchor fastening X ve e/e m X ve V X ve = e/e m * e/e m a b a >1,5.e X ve = 3*e+a * e/e m 6*e m For 2 anchors fastening X ve e/e m a/e m a 1 a 2 a 3 a n-1 For 3 anchors fastening and more V b a >1,5.e X ve = 3*e + a 1 +a 2 +a 3 + +a n-1 3*n*e m * e/e m RAMSET

7 e 1 Concrete edges Shear Force e 2 ANCHOR AT A CORNER Failure wedge Table 4e - Cracked concrete Pryout failure, V 0 Rd,cp = V Rk,cp / Mpr (kn) Mpr = 1.5, f' c = 20 MPa Effective depth, h C to +40 C C to +80 C Table 4f at a corner effect, concrete edge shear, X vs Note: For e 1 /e 2 > 1.25, X vs = 1.0 Edge distance, e Edge dustance, e a Design cracked concrete edge shear resistance, V Rd,c V Rd,c = V 0 Rd,c * X vc * X vd * X ve * X vs 4b Design cracked concrete Pryout failure, V Rd,cp V Rd,cp = V 0 Rd,cp * X nc * X ne * X na STEP 5 5 Verify cracked concrete shear resistance - per anchor Table 5a - Cracked concrete steel shear resistance, V Rd,s = V Rk,s / Ms (kn) Ms = 1.25 for Grade 5.8 and Grade 8.8 Carbon Steel Ms = 1.56 for M8 to M24 A4 316 Stainless Steel and Ms = 2.38 for M30 A4 316 Stainless Steel Ms = 2.17 for HCR Stainless Steel Grade 5.8 Carbon Steel Grade 8.8 Carbon Steel A4 316 Stainless Steel HCR Stainless Steel Design cracked concrete shear resistance, V Rd V Rd = minimum of V Rd,c, V Rd,cp,V Rd,s Check V*/V Rd 1, if not satisfied return to step RAMSET

8 STEP 6 6 Combined Loading Check N*/N Rd + V*/V Rd 1.2, if not satisfied return to step 1 Specifiy Ramset EPCON C8 Injection ( Size) (Part Number) Maximum fixed thickness to be (t) mm Tension - Sustained Loading Cracked Concrete Concrete Strength f' c = 20 MPa - (-40 C to +40 C) Example Ramset EPCON C8 Injection M20 (CS20260) Maximum fixed thickness to be 55 mm To be installed in accordance with Ramset Technical Data Sheet Size (d b ) M8 M10 M12 M16 M20 M24 M30 Tension load in Cracked Concrete (kn) Displacement N0 (short term) N (long term) Concrete Strength f' c = 20 MPa (-40 C to +80 C) Size (d b ) M8 M10 M12 M16 M20 M24 M30 Tension load in Cracked Concrete (kn) Displacement N0 (short term) N (long term) Note: Above tables are based on the nominal effective depth, h shown in the installation tables within. For all other values of effective depth, h, please contact your local Ramset Engineer. Shear - Sustained Loading Cracked Concrete Concrete Strength f' c = 20 MPa Size (d b ) M8 M10 M12 M16 M20 M24 M30 V0 (mm/kn) (short term) Displacement V (mm/kn) (long term) Note: Displacement short term = V0 x V Sd (Shear Design Load in Cracked Concrete) Displacement long term = V x V Sd (Shear Design Load in Cracked Concrete) RAMSET

Cracked Concrete. Introduction. Cracked Concrete CRACKED CONCRETE

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