SikaGrout®-328
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SikaGrout®-328 is a non-shrink, non-metallic, cementitious precision grout powered by ViscoCrete technology. This grout provides extended working time and exceptional physical performance at fluid consistency. A structural, precision grout, SikaGrout®-328 can be placed from fluid to dry pack.
- Multiple fluidity with one material
- Reaches 10,000 psi in dry pack consistency
- Outstanding performance in fluid state
- Extended working time
- Excellent fluidity - sufficient time for placement
- Contains premium quality quartz aggregate
- Hardens free of segregation
- Non-metallic, will not stain or rust
- Shows positive expansion
Usage
- Where exceptional one day and ultimate compressive strengths are required.
- Applications requiring a pumpable grout.
- Non-shrink grouting of machinery and equipment, base plates sole plates, precast panels, beams, columns and curtain walls.
- Applications where a non-shrink grout is needed for maximum effective bearing area to transfer optimum load.
- For underwater application in conjunction with Sikament® 100 SC. Consult Technical Service for dosage information. Independent test data is available however on site testing is recommended to confirm performance under actual field conditions.
- For grouting rebar, bolts, dowels and pins, etc.
Advantages
- Multiple fluidity with one material
- Reaches 10,000 psi in dry pack consistency
- Outstanding performance in fluid state
- Extended working time
- Excellent fluidity - sufficient time for placement
- Contains premium quality quartz aggregate
- Hardens free of segregation
- Non-metallic, will not stain or rust
- Shows positive expansion
Packaging
50 lb (22.7 kg) bag
Color
Gray powder
Product Details
APPROVALS / STANDARDS
- Meets ASTM-C 1107 (Grade B & C)
- SikaGrout®-328 is USDA certifiable
Shelf Life
9 months from date of production if stored properly in original, unopened and undamaged sealed packaging
Storage Conditions
Store dry at 40–95 °F (4–35 °C)
Protect from moisture. If damp, discard material
Compressive Strength
| (ASTM C-109) 73 °F (23 °C) 50 % R.H. | Dry Pack | Plastic | Flowable | Fluid |
| 1 day | 5,000 psi (34.4 MPa) | 4,500 psi (31 MPa) | 4,000 psi (27.6 MPa) | 3,500 psi (24.1 MPa) |
| 3 day | 8,000 psi (55.2 MPa) | 6,500 psi (44.8 MPa) | 6,000 psi (41.4 MPa) | 5,500 psi (37.9 MPa) |
| 14 day | 9,200 psi (63.4 MPa) | 7,000 psi (48.3 MPa) | 6,700 psi (46.2 MPa) | 6,500 psi (44.8 MPa) |
| 28 day | 10,000 psi (69 MPa) | 8,200 psi (56.5 MPa) | 8,000 psi (55.2 MPa) | 7,500 psi (51.7 MPa) |
Flexural Strength
| Fluid | |
| 3 day | 1,100 psi (7.6 MPa) |
| 7 day | 1,200 psi (8.6 MPa) |
| 28 day | 1,300 psi (9 MPa) |
Splitting Tensile Strength
| Fluid | |
| 3 day | 350 psi (2.4 MPa) |
| 7 day | 400 psi (2.8 MPa) |
| 28 day | 650 psi (4.5 MPa) |
Shear Strength
| Fluid | |
| 3 day | 950 psi (6.6 MPa) |
| 7 day | 1,750 psi (12.1 MPa) |
| 28 day | 2,000 psi (13.8 MPa) |
*Mortar scrubbed into substrate at 73 °F (23 °C) and 50 % R.H.
Freeze-Thaw Stability
| 300 Cycles | 99 % |
Application
Mixing Ratio
| Dry Pack | Plastic | Flowable | Fluid |
| 5.5–6.0 pts (2.6–2.8 L) | 6.5–7.0 pts (3.1–3.3 L) | 7.0–7.5 pts (3.3–3.5 L) | 8.0–8.5 pts (3.8–4 L) |
Layer Thickness
| Min. | Max. |
| 1/2" (12.7 mm) | 6" (152.4 mm) |
For application thicknesses of 6" or greater, consult Sika®’s Technical Service Department.
Flowability
| Dry Pack | Plastic1 | Flowable1 | Fluid2 |
| 10–25 % | 100–125 % | 124–145 % | 20–60 sec |
1ASTM C-1437
2ASTM C-939
Product Temperature
65–75 °F (18–24 °C)
Ambient Air Temperature
> 45 °F (7 °C)
Substrate Temperature
> 45 °F (7 °C)
Set Time
| Dry Pack | Plastic | Flowable | Fluid | |
| Initial | < 15 min | > 2 hr | > 3 hr | > 4 hr |
| Final | < 2 hr | < 6 hr | < 7 hr | < 8 hr |
Coverage
0.44 ft3 (0.01 m3) per bag at hfluid consistency
(Coverage figures do not include allowance for surface profile and porosity or material waste)
MIXING
- Pour the water in the recommended proportion into a suitable mixing container.
- DO NOT OVER WATER!
- Ambient and material temperature should be as close as possible to 70 °F. If higher, use cold water; if colder, use warm water.
- While mixing slowly, add the powder to the water.
- Mix thoroughly for at least 5 minutes with low speed (400-600 rpm) using a Sika mixing paddle or a jiffy paddle to avoid entraining too much air and until homogenous with no lumps.
EXTENSION WITH AGGREGATES
- For deeper applications (plastic and flowable consistancy only), 25 lbs. of 3/8" (9.5 mm) coarse aggregate can be added.
- The aggregate must be non-reactive (reference ASTM C-1260, C-227 and C-289), clean, well graded, saturated surface dry, have low absorption and high density, and comply with ASTM C-33 size number 8 per Table 2.
- Variances in aggregate may result in different strengths.
- Add pea gravel after the water and SikaGrout®-328.
APPLICATION
- Within 60 minutes after mixing, place grout into forms in normal manner to avoid air entrapment.
- Vibrate, pump, or ram grout as necessary to achieve flow or compaction.
- SikaGrout®-328 must be confined leaving minimum exposed surface.
- After grout has achieved final set, remove forms, trim or shape exposed grout shoulders to designed profile.
- SikaGrout®-328 is an excellent grout for pumping, even at high flow. For pump recommendations, contact Technical Service.
CURING TREATMENT
- Wet cure for a minimum of 3 days or apply a curing compound which complies with ASTM C-309 on exposed surfaces.