MANHOLE MORTAR
Spray Applied Structural Repair Liner

Product Description

Ultra high strength blended STRUCTURAL Mortar with Microsilica and Polypropylene fibers. Designed to repair and/or reinforce sewer structures such as Manholes, Lift Stations, Waste Water Treatment Plants and/or any aged concrete or masonry structures. Product can be SHOTCRETE, hand applied, or pumped into place. Product is a well proportioned blend of quality materials such as MICROSILICA, and other HIGH STRENGTH ADMIXTURES to enhance workability, bonding, strength, and resistance to harsh h2s gas/chemical attacks. Product comes in a prepackaged 50lbs bag and 3000 lbs bulk bags. Product conforms to industry standards ACI 201.2R-01 Guide to Durable Concrete and ASTM F 2551-09 Standard Practice for Installing a Protective Cementitious Liner System in Sanitary Sewer Manholes.

Physical Properties Data
Results can vary
Compressive Strength ASTM-C109
1 day           3300 psi
7 days         6400 psi
28 days     >9500 psi
Compressive Strength ASTM-C39
28 day        Load 101980 lbf  
Flexural Strength ASTM-C78
1 day                 590 psi
7 days             1160 psi
28 days           1440 psi
Bonding ASTM C882
Substrate Failure
Sulfate Resistance ASTM-C1012
<0.05% at 180days
<0.1% at 365 days
Slump ASTM-C143 3 inches
Maximum of 5.00 inches per application
Water content/bag ~ 2/3-1 gal 50 lbs
Unit weight 149 pcf (2387 kg/m3)
Absorption 7.3%
Rebound 2-3%
Rapid chloride permeability tests,
ASTM-C1202
Coulombs < 500 very low

Technical Data
APPLICABLE STANDARDS
ASTM International
• ASTM C42 Standard Test Method for
Obtaining and Testing Drilled Cores and
Sawed Beams of Concrete (AASHTO T24)
• ASTM C78 Standard Test Method for Flexural
Strength of Concrete (Using Simple Beam
with Third-Point Loading)
• ASTM C109 Standard Test Method for
Compressive Strength of Hydraulic Cement
Mortars (Using 2-in. or [50-mm] Cube
Specimens)
• ASTM C882 Standard Test Method for Bond
Strength of Epoxy-Resin Systems Used With
Concrete By Slant Shear
• ASTM C1012 Standard Test Method for
Length Change of Hydraulic-Cement
Mortars Exposed to a Sulfate Solution
• ASTM C1202 Standard Test Method for
Electrical Indication of Concrete’s Ability to
Resist Chloride Ion Penetration
• ASTM C1399 Test Method for Obtaining
Average Residual-Strength of Fiber-
Reinforced Concrete
• ASTM C1480 Standard Specification for
Packaged, Pre-Blended, Dry, Combined
Materials for Use in Wet or Dry Shotcrete
Application
PHYSICAL/CHEMICAL PROPERTIES
The performance of dry process shotcrete
cannot be duplicated in the laboratory. In
spite of that fact, laboratory data are important
for quality control purposes and for making
comparisons between formulations.
Manhole Mortar products have been
extensively tested both in the laboratory and
in the field. The greatly enhanced performance
in the field shows the benefits of low
water/cement ratio and high compaction.
The field test data are offered only as an
example of what can be achieved with qualified
operators using proper techniques. The
quality of wet process shotcreting is very
dependent on the skills of the operator.
Table 1 shows typical laboratory data for
shotcretes with and without fibers
Additionally, Manhole Mortar complies with
Grades SR (Sulfate-Resistant) and LP (Low
Permeability). Manhole Mortar with
Steel Fibers complies with Grade FR (Fiber-
Reinforced), Class II. Southern Trenchless Solutions LLC..also offers custom

STRUCTURE BEFORE
MANHOLE MORTAR

STRUCTURE AFTER
MANHOLE MORTAR

designs to meet other types and grades
of ASTM C1480, as well as job specific specifications.
Consult a local Southern Trenchless Solutions LLC. Representative for details.
5. Installation EQUIPMENT
Manhole Mortar MSP is normally applied using
wet process shotcrete machinery. Wet process
shotcrete is a very efficient method for making
repairs to horizontal, vertical and overhead surfaces.
The process allows for the placement of
the repair material at a very low water/cement
ratio with a high degree of compaction. The
result is a repair that is superior to other methods
of placement of repair material.
Manhole Mortar can also be applied
using wet process shotcrete machinery. The
performance will be enhanced by the appropriate
choice of admixtures. Consult a local
Southern Trenchless Solutions LLC. representative for details.
PREPARATORY WORK
Southern Trenchless Solutions LLC. recommends that job mock-ups be prepared by the contractor and tested prior to beginning a project.
METHODS
Southern Trenchless Solutions LLC.
recommends that the applicator be ACI certified and that American Concrete
Institute (ACI) Committee 506 or ASTM F 2551-09 Standard Practice for Installing a Protective Cementitious Liner System in Sanitary Sewer Manholes procedures be followed for surface preparation, equipment, nozzleman certification and shotcrete placement and curing procedures. Refer to the following
• ACI 506R-90 Guide to Shotcrete
• ACI 506.2-95 Specifications for Shotcrete
• ACI 506.1R-98 Committee Report on Fiber
Reinforced Shotcrete
• ACI CP-60 Craftsman Workbook for ACI
Certification of Shotcrete Nozzleman
APPLICATION
Application Over Concrete Surfaces
Remove all spalled, severely cracked,
deteriorated, loose and unsound concrete
from existing concrete surface by chipping,
water blasting or other mechanical methods.
Adequate prewetting of the concrete substrates
should be done prior to shotcreting.