Product Data Sheet Safety Data Sheet Show all documents

SikaGrout®-328

High performance, precision, grout with extended working time

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
Product Data Sheet Safety Data Sheet Show all documents

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

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • Meets ASTM-C 1107 (Grade B & C)
  • SikaGrout®-328 is USDA certifiable
Product Information

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
Technical Information

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 day1,100 psi (7.6 MPa)
7 day1,200 psi (8.6 MPa)
28 day1,300 psi (9 MPa)

Splitting Tensile Strength

Fluid
3 day350 psi (2.4 MPa)
7 day400 psi (2.8 MPa)
28 day650 psi (4.5 MPa)

Shear Strength

Fluid
3 day950 psi (6.6 MPa)
7 day1,750 psi (12.1 MPa)
28 day2,000 psi (13.8 MPa)

*Mortar scrubbed into substrate at 73 °F (23 °C) and 50 % R.H.

Freeze-Thaw Stability

300 Cycles

99 %

Application

Application Information

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 PackPlastic1Flowable1Fluid2
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 PackPlasticFlowableFluid

Initial

< 15 min> 2 hr> 3 hr> 4 hr

Final

< 2 hr< 6 hr< 7 hr< 8 hr
 
Consumption

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)
Application steps

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.

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