ICRI Review Comment Form

Document Title: 320.2R–xx Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces Date: August 24, 2015Committee: 320 Repair Materials and MethodsNo. Initials Pg # Line # E/P/S Comment Committee Response1. JEM 0 0 S When I became involved in concrete repair ≈30 years ago, the general

approach was to use packaged cementitious mortars. This was still the general approach when we drafted the original version of this guideline in the mid-1990s. Despite continued “repair of the repairs” and increased testing that illustrates the importance of drying shrinkage and the need for maximum practical size and volume of aggregate in repair mixtures, the document still, in my opinion, has a bias toward mortar mixtures. While it is generally accepted that many mortar mixtures can be extended with coarse aggregate, this fact is only mentioned once in the document (p 55, Commentary about AAR). Also, it is generally accepted that concrete mixtures, with or without supplementary cementitious materials such as fly ash, silica fume, etc., with a 0.40 w/c and 75% aggregate volume typically exhibits a 28-day drying shrinkage around 0.05%. The advantages of concrete mixtures where repair cavity size (≥2 in.) allows should be discussed where appropriate within the document and certainly in discussions of repair material selection considerations.

2. JEM 1 4 E Delete “(formerly No. 03733)”3. JEM 3 12 E Replace heading with “ICRI Committee 320, Concrete Repair

Materials and Methods”4. JEM 3 13 E Insert “Voting Members” followed by website roster at time document

was approved for submittal to TAC for review. This section will be followed by “Consulting Members” with appropriate roster. If desired, the Chair can recognize any members that made significant contributions to document by asterisk following name and footnote explanation. Also, contributors that are not committee members can be recognized similarly

5. JEM 6 7 E “remained” delete “03733”6. JEM 6 8 E Document titles are limited to reference section and are not repeated in

the narrative. Include citation for “ICRI 320.3R” in section 5.1 p 747. JEM 6 15 E Staff will insert current disclaimer 8. JEM 7 2 P All headings and subheadings must be numbered according to 2015

TCM, Chapter 5 (http://www.icri.org/committees/ICRI-TCM-Final-2015.pdf)

9. JEM 10 1 P Chapter 1 should be “1.0 Introduction” to include background & scope which may or may not be subheadings. Chapter 2 should be “2.0 Definitions” See TCM 5.3 for statement to be used depending on whether definitions or included or not.

10. JEM 10 2 P Revise to “3.0 Material Selection Process”

Document Title: 320.2R–xx Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces Date: August 24, 2015Committee: 320 Repair Materials and MethodsNo. Initials Pg # Line # E/P/S Comment Committee Response11. JEM 13 10 E Delete “*” and document titles throughout12. JEM 13 13 E Delete line and footnote13. JEM 13 17 E Revise to “Section 4 of …”14. JEM 13 19 E Revise to “Section 5 of …”15. JEM 14 1 E Revise to “Section 6 of …”16. JEM 14 6 E Revise to “Section 7 of …”17. JEM 14 9 E Revise to “3.1 Surface Repair Concept” 18. JEM 14 11 R Revise to “(Fig. 3.1)”19. JEM 14 21 E Revise to … maintenance (USACE 1995).”20. JEM 16 3 E Revise to “3.2 Structural Applications”21. JEM 16 16 E Insert “4.0 Project Objectives” 22. JEM 16 18 E “Causes(s) of Deterioration – Determining the …;’

“Owner Requirements – The …;”

23. JEM 17 12 E Delete heading. 24. JEM 17 13 E Revise to “4.1 Owner Requirements Checklist” 25. JEM 20 1 E Delete heading.26. JEM 20 2 E Revise to “4.2 Service Conditions Checklist”27. JEM 20 2 E “(See ACI 562 Ch. 5, 6, 7)” more appropriate as footnote rather than part

of heading28. JEM 22 4 E Revise to “4.3 Application Conditions Checklist”29. JEM 25 1 E Insert “5.0”30. JEM 35 1 E Revise to “6.0 Determining …”31. JEM 35 11 E Revise to “… are established (See Section 4.0), a list …”32. JEM 36 2 E Revise to “Polymer-cement or Polymer-modified repair materials … “33. JEM 36 3 E Delete all quotation marks. Revise to “Typically, polymer-cement refers

to the addition of a polymer such as latex …”34. JEM 36 9 E Revise to “concrete, polymer-cement—a mixture comprising hydraulic

cement and aggregate combined at the time of mixing with organic monomers or polymers that are dispersed in water.”

35. JEM 38 1 E Revise to “6.1 Bond Strength” Revise heading and figure numbers throughout remainder of section as appropriate.

36. JEM 38 8 P Replace sentence with “See ACI 546.3R for a summary of six test methods available for determining bond strength.”

37. JEM 38 19 E “Core drilling should be conducted in accordance with ICRI 210.3R to minimize potential failure at the bond interface between repair and substrate.” Delete document titles here and throughout narrative.

38. JEM 39 5 P Revise to “Three direct tensile test methods are:

Document Title: 320.2R–xx Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces Date: August 24, 2015Committee: 320 Repair Materials and MethodsNo. Initials Pg # Line # E/P/S Comment Committee Response

ASTM C1583/C1583M; ICRI 210.3R; and CSA A23.2-6B.”

Revise ASTM number as shown throughout. Add “Canadian Standards Association” to “Referenced Standards and Reports” section and cite CSA reference (see 210.3R references for information).

39. JEM 39 18 E “… reported as indicated in ICRI 320.3R.”40. JEM 40 8 E “The direct tensile test is an important …”41. JEM 40 9 E “The three test methods referenced provide a description …”42. JEM 40 12 E Delete “with”43. JEM 40 19 P Verify that this is still a viable test method. If so, provide test method

number and cite reference(s) for additional information; otherwise, delete44. JEM 41 12 E Revise to “Slant-shear bond test methods include:

ASTM C882/C882M; and AASHTO T37.”

Revise ASTM number as shown throughout. Cite reference titles in ASTM and AASHTO sections of Referenced Standards and Reports

45. JEM 41 13 P Delete. ASTM C1042 withdrawn 2008, no replacement46. JEM 41 14 E Delete47. JEM 41 16 E Delete solid line and footnote pp 16-1848. JEM 42 10 E Insert “(USACE)” after Engineers”49. JEM 42 11 P Revise to “Details of this program are summarized in the following;

Preliminary performance criteria for dimensionally compatible repair materials developed by Emmons and Vaysburd (1995). A comprehensive experimental program of laboratory and field tests was also developed to verify the performance criteria;

Twelve candidate repair materials were subjected to laboratory tests to determine properties including (a) unrestrained and restrained drying shrinkage, (b) modulus of elasticity, (c) tensile and compressive creep, (d) coefficient of thermal expansion and (e) flexural, compressive, and direct tensile strengths (Poston et al. 1998);

Concurrent field testing of the 12 repair materials was conducted at three test sites (AZ, FL, and IL). Performance of the partial-depth repairs were monitored for 18 months. Relative rankings of the materials were developed based on their field performance with resistance to cracking being the predominate factor in these rankings (Emmons, et al. 1998); and

Results of laboratory tests and field performance studies were

Document Title: 320.2R–xx Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces Date: August 24, 2015Committee: 320 Repair Materials and MethodsNo. Initials Pg # Line # E/P/S Comment Committee Response

correlated and guidance for selection of repair materials that would reduce the risk of premature failures was developed. This guidance includes a standard protocol for repair material data sheets and proposed performance criteria. Results of this study illustrate the significant effect of drying shrinkage on the performance of restrained repair materials (Vaysburd et al. 1999).

50. JEM 44 9 E “Unrestrained dry shrinkage should be determined in accordance with ASTM C157/C157M as modified by ICRI 320.3R.” Revise ASTM number here and throughout. Cite reference title in ASTM section of Referenced Standards and Reports with other ASTM standards. Revise to “ASTM C157/C157M” here and throughout

51. JEM 44 10 E Replace “"” with “in.” here and throughout52. JEM 44 14 E Revise to “… discussed in ACI 546.3R.”53. JEM 44 24 P A USACE study to develop performance criteria also illustrated the

importance of low drying shrinkage. The top four ranked materials in field performance (minimal or no cracking) complied with all of the unrestrained shrinkage criteria. In contrast, the remaining eight materials, with increasing extent of cracking, complied with only approximately 50% of the shrinkage criteria. This study indicates that 28-day and ultimate values of drying shrinkage should not exceed 0.04 and 0.10%, respectively (Vaysburd et al. 1999).

54. JEM 45 5 P In some cases narrative follows directly behind “Test Method.” In other cases narrative begins on the next line. Be consistent

55. JEM 45 6 E Revise to “… discussed in ACI 546.3R.”56. JEM 45 14 P Insert “A USACE study to develop performance criteria suggests that the

coefficient of thermal expansion for cement-based and polymer-cement repair materials should not exceed 7 x 10-6/°F (13 x 10-6/°C) when determined in accordance with CRD-C 39 (WES 1949a).”

57. JEM 46 15 P Insert “… and delamination. A USACE study to develop performance criteria suggests that the modulus of elasticity should not exceed 3.5 x 106 psi (24 GPa) for nonstructural repairs when determined in accordance with ASTM C469/469M.”

58. JEM 46 21 E Revise to “… Note ACI 364.5T-10.”59. JEM 47 15 P Insert “Although there was no significant correlation between

compressive or tensile creep and field performance, the trend in each case was for improved field performance with decreased creep (Vaysburd et al. 1999). These unexpected results were attributed in part to the generally higher drying shrinkage associated with the materials

Document Title: 320.2R–xx Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces Date: August 24, 2015Committee: 320 Repair Materials and MethodsNo. Initials Pg # Line # E/P/S Comment Committee Response

that exhibited high creep characteristics. Apparently, the higher strains induced by increased drying shrinkage more than offset any additional strain relaxation because of increased creep.”

60. JEM 48 8 E Revise first sentence to “ASTM C1581/C1581M should be used to determine restrained drying shrinkage and cracking potential of cementitious repair materials. This test method, commonly known as the ring test, is also discussed in ACI 546.3R and ACI 364.3R.” Revise ASTM number throughout and cite reference title in ASTM section of Referenced Standards and Reports

61. JEM 49 29 P Insert “A USACE study to develop performance criteria indicates that materials which do not crack during the first 14 days of restrained shrinkage testing are likely to exhibit satisfactory field performance (Vaysburd et al. 1999).”

62. JEM 50 14 P “Test methods used to measure permeability include: • AASHTO T 259; • AASHTO T 277; • ASTM C 1202; and • ASTM C 1543.”Cite reference titles in AASHTO and ASTM sections of Referenced Standards and Reports

63. JEM 50 20 P Replace with “Rapid chloride permeability results (ASTM C1202) should be correlated with ASTM C1543 as described in ICRI 320.3R.”

64. JEM 51 18 E Revise to “Water vapor transmission tests should be conducted in accordance with ASTM E96/E96M (Fig. 6.?).”

65. JEM 52 19 P “Resistance to cycles of freezing and thawing should be determined in accordance with ASTM C666/C666M (Procedure A) modified in accordance with ICRI 320.3R.”

66. JEM 53 4 E “ASTM C666/C666M” here and throughout67. JEM 53 12 P Delete. ASTM C671 withdrawn 2003, no replacement68. JEM 53 20 E “Scaling resistance of concrete surfaces exposed to deicing chemicals

should be determined in accordance with ASTM C672/C672M (modified).”

69. JEM 54 14 P “ASTM C1012/C1012M provides a means of assessing the sulfate resistance of mortars made using portland cement, blends of portland cement with pozzolans or slags, and blended hydraulic cements.”

70. JEM 54 15 E ASTM C1012/C1012M” here and throughout. Cite reference title in ASTM section of Referenced Standards and Reports

71. JEM 55 8 P “Five test methods are used to evaluate alkali-aggregate reactivity potential (ACI 546.3R):

Document Title: 320.2R–xx Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces Date: August 24, 2015Committee: 320 Repair Materials and MethodsNo. Initials Pg # Line # E/P/S Comment Committee Response

• ASTM C 227; • ASTM C 1260/1260M; • ASTM C 1293; • ASTM C 289; and • ASTM C 295/C295M.The potential for alkali reactivity between a particular aggregate and cement can be assessed with ASTM C227, C1260/C1260M, and C1293. Samples of the combined materials are stored in warm, moist conditions and the change in length is monitored over time. ASTM C289 is a chemical method to evaluate the reactivity of a particular aggregate. ASTM C295/C295M describes a petrographic procedure to identify aggregate types that are susceptible to alkali-aggregate reaction.”

72. JEM 56 12 E “ASTM C 418 covers the laboratory evaluation of the …”73. JEM 56 14 P Not sure how repair material can be a less resistant component of the

concrete? Suggest you insert “mortar” or delete parentheses74. JEM 56 15 E “ASTM C779/C779M provides three procedures …”75. JEM 56 19 E “ASTM C944/C944M uses a rotating cutter to evaluate abrasion

resistance. The primary …”76. JEM 56 21 E “ASTM C779/C779M” throughout77. JEM 57 1 E “ASTM C1138 covers a procedure for determining the relative abrasion

resistance of concrete, mortar, overlays, and other materials that can be applied to the surface of concrete disks.”

78. JEM 57 8 E “Of the four methods, ASTM C779/C779M (Procedure A) has the highest precision.”

79. JEM 57 18 P “Direct tensile pull-off strength (ASTM C1583/C1583M) should not be confused with splitting tensile strength (ASTM C496/C496M) or direct tensile strength (CRD-C 164).” I see no reason to continue including ASTM C190 that was discontinued 24 years ago, particularly with alternatives available. http://www.wbdg.org/ccb/ARMYCOE/COESTDS/crd_c164.pdf

Document Title: 320.2R–xx Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces Date: August 24, 2015Committee: 320 Repair Materials and MethodsNo. Initials Pg # Line # E/P/S Comment Committee Response

80. JEM 57 22 E Move figure citation to narrative instead of heading81. JEM 58 1 P Replace with “CRD-C 164 covers the determination of the direct tensile

strength of cylindrical specimens of concrete or mortar.”82. JEM 58 2 E “ASTM C496/C496M covers the determination of the splitting tensile

strength of cylindrical concrete specimens, such as molded cylinders and drilled cores.”

83. JEM 58 3 E Delete 84. JEM 58 4 E Cite reference information in USACE section of Referenced Standards

and Reports85. JEM 58 9 P Delete paragraph. Insert “A USACE study to develop performance

criteria reported that repair materials should a minimum direct tensile strength of 400 psi (2.8 MPa) when tested in accordance with CRC-C 164 (Vaysburd et al. 1999).”

86. JEM 58 16 P Replace last sentence with “Splitting tensile strength is generally greater than direct tensile strength and lower than flexural strength (modulus of rupture).”

87. JEM 59 5 E Move figure citation to narrative instead of heading88. JEM 59 6 E “ASTM C78/C78M covers the determination of the flexural strength of

concrete by the use of a simple beam with third-point loading.”89. JEM 59 7 E “ASTM C348 covers the determination of the flexural strength of

hydraulic-cement mortars.”

Document Title: 320.2R–xx Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces Date: August 24, 2015Committee: 320 Repair Materials and MethodsNo. Initials Pg # Line # E/P/S Comment Committee Response90. JEM 59 8 P Delete. ASTM C78/C78M states the requirements for test specimens 91. JEM 59 9 E “ASTM C78/C78M” here and throughout92. JEM 59 11 E “ASTM C348” remainder of paragraph93. JEM 59 21 E “ASTM C109/C109M covers determination of the compressive strength

of hydraulic cement mortars, using 2-in. or (50-mm) cube specimens.”94. JEM 60 1 E “ASTM C39/C39M covers determination of compressive strength of

cylindrical concrete specimens such as molded cylinders and drilled cores. It is limited to concrete having a density in excess of 50 lb/ft3 (800 kg/m3).”

95. JEM 60 2 P Move to Commentary96. JEM 60 4 P Delete. ASTM C39/C39M references ASTM C42/C42M97. JEM 60 13 P Insert “A USACE study to develop performance criteria indicated no

correlation between compressive strength of materials and field performance of repairs (Vaysburd et al. 1999). For example, the six materials with satisfactory field performance had compressive strengths ranging from 4,060 to 11,530 psi (28 to 80 MPa) with an average of 7,260 psi (50 MPa). In comparison, the four materials that exhibited unsatisfactory field performance had compressive strengths ranging from 4,330 to 9,760 psi (30 to 67 MPa) with an average of 6,560 psi (45 MPa).”

98. JEM 61 3 E Use “water-cementitious material or polymer-cement ratios” throughout99. JEM 62 2 E Delete title and cite in ASTM section of Referenced Standards and

Reports100. JEM 62 7 E “ICRI 320.5R can be …”101. JEM 63 7 E “… specified through ASTM C150/C150M, C595/C595M,

C1157/C1157M, and C1600/C16000M.” Cite titles in ASTM section of Referenced Standards and Reports

102. JEM 63 19 E “(13ºC)”103. JEM 64 1 E “ACI 305.1 and 306.1 include specifications for hot and cold weather

concreting, respectively. This information can aid in making …”104. JEM 64 8 E Replace “setting” with “hardening”105. JEM 65 5 P “See ICRI 320.3R, Emmons and Vaysburd (1995), and Vaysburd, et al.

(1999) for profiles of desired material properties and performance criteria for typical repair applications. These documents can aid the user in matching requirements with …”

106. JEM 65 7 E Delete lines 7-13107. JEM 66 6 E Format list in accordance with TCM Section 6.2108. JEM 67 8 P Question whether this paragraph is suitable for “Materials Properties”

Document Title: 320.2R–xx Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces Date: August 24, 2015Committee: 320 Repair Materials and MethodsNo. Initials Pg # Line # E/P/S Comment Committee Response

section. A brief summary and reference to information in ACI 546.3R Table 3.1 may be more appropriate.

109. JEM 68 2 P Materials data sheets include repair materials, sealers, coating, and admixtures. More than 50% of the entries are sealers and coatings and the last supplement was in 1996; therefore, much of this data may be outdated or of limited use in selection of repair materials. As a plus, a hyperlink is included with the reference so the relevance of data can be easily determined.

110. JEM 69 2 E This table probably did not make much sense to reviewers unfamiliar with the existing guideline where the following 4 pages are shown as one table on 2 facing pages. The information content included is identical to that in the current guideline. Not sure these typical values are of much use to experienced practitioners but may of interest to entry positions.

111. JEM 70 1 E 1st column, 4th cell: Revise to “silica-fume concrete”1st column, 5th cell: Revise to “polymer-cement concrete”1st column, 6th cell: Revise to “polymer-cement mortar”Typical polymer modifiers include styrene butadiene, acrylic, vinyl acetate-ethylene, styrene acrylic, and epoxy; therefore “latex” is unnecessarily restrictive.3rd column, 5th , 6th and 11th cells: Delete “latex”

112. JEM 72 1 E Typical compressive strengths are obviously for conventional cementitious materials. Should consider adding a footnote to the effect that much higher early-age strengths can be obtained with rapid-hardening cementitious materials.

113. JEM 74 6 E Delete lines 6-12114. JEM 74 6 E Insert individual citations for all referenced standards and reports

according to examples shown in TCM Section 5.8.2.3.4. and as follows:

American Association of State Highway and Transportation OfficialsT237 Testing Epoxy Resin AdhesiveT259 Resistance of Concrete to Chloride Ion PenetrationT277 Rapid Determination of the Chloride Permeability of Concrete

American Concrete Institute201.2R Guide to Durable Concrete302.1R Delete or cite in narrative305.1 Specification for Hot Weather Concreting……

Document Title: 320.2R–xx Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces Date: August 24, 2015Committee: 320 Repair Materials and MethodsNo. Initials Pg # Line # E/P/S Comment Committee Response

364.5T Importance of Modulus of Elasticity in Surface Repair Materials ….562 Code Requirements for Evaluation, Repair, and Rehabilitation of Concrete Buildings ASTM InternationalC39/C39M Compressive Strength of Cylindrical Concrete SpecimensC78/C78M Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading) …… C1600/C1600M Rapid Hardening Hydraulic CementE96/E96M Water Vapor Transmission of Materials

Canadian Standards AssociationA23.2-6B Determination of Bond Strength of Bonded Toppings and Overlays and of Direct Tensile Strength of Concrete, Mortar, and Grout

International Concrete Repair Institute210.3R Guide for Using In-Situ Tensile Pulloff Tests to Evaluate Bond of Concrete Surface Materials210.4 Guide for Non-Destructive Test Methods for Condition Assessment, Repair, and Performance Monitoring of Concrete Structures320.3R Guideline for Inorganic Repair Material Data Sheet Protocol320.5R Pictorial Atlas of Concrete Repair Equipment

U.S. Army Corps of EngineersCRD-C39 Coefficient of Linear Thermal Expansion of ConcreteCRD-C164 Direct Tensile Strength of Cylindrical Concrete or Mortar Specimens

Referenced standards and reports can be obtained from these organizations.

American Association of State Highway & Transportation Officials444 North Capitol Street N.W., Suite 249Washington, DC 20001

Document Title: 320.2R–xx Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces Date: August 24, 2015Committee: 320 Repair Materials and MethodsNo. Initials Pg # Line # E/P/S Comment Committee Response

www.transportation.org

American Concrete Institute38800 Country Club DriveFarmington Hills, MI 48331www.concrete.org

ASTM International100 Barr Harbor DriveWest Conshohocken, PA 19428www.astm.org

Canadian Standards Association178 Rexdale BlvdToronto, ON, Canada M9W 1R3www.csa.ca

International Concrete Repair Institute10600 W. Higgins Road, Suite 607Rosemont, IL 60018www.icri.org

U.S. Army Corps of EngineersEngineer Research and Development CenterVicksburg, MS 39181http://www.wbdg.org/ccb/browse_cat.php?c=3

115. JEM 75 6 E Delete remainder of page116. JEM 76 2 E Delete117. JEM 76 3 E Revise to “Best, J. F., and McDonald, J. E., 1990, “Spall Repair …”

Delete all bold “Author Date” headings and revise following citations in accordance with TCM and example above.

118. JEM 76 18 P Insert “http://www.dtic.mil/dtic/tr/fulltext/u2/a295136.pdf”119. JEM 77 5 E Delete “Dalyrymple, W.,”120. JEM 77 7 P Insert “http://acwc.sdp.sirsi.net/client/search/asset/1004730”121. JEM 77 13 P Insert

“http://www.publications.usace.army.mil/Portals/76/Publications/EngineerManuals/EM_1110-2-2000.pdf”

122. JEM 77 16 P Insert

Document Title: 320.2R–xx Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces Date: August 24, 2015Committee: 320 Repair Materials and MethodsNo. Initials Pg # Line # E/P/S Comment Committee Response

“http://www.publications.usace.army.mil/Portals/76/Publications/EngineerManuals/EM_1110-2-2002.pdf”

123. JEM 77 18 P Draft citation based on following title page: “http://www.iowadot.gov/research/reports/Year/2004/abstracts/tr428abs.pdf”

124. JEM 77 19 E Correct invalid link125. JEM 79 2 E Revise to “Poston, R. W., Kesner, K. E., Emmons, P. H., and Vaysburd,

A. M., 1998 (Apr), “Performance ….”126. JEM 79 4 E Insert “http://acwc.sdp.sirsi.net/client/search/asset/1004727”127. JEM 79 6 E Revise to “USAEWES, 1985 (periodic supplements, “The REMR

Notebook,” U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS. http://wri.usace.army.mil/remr/materials_data_sheets/”

128. JEM 79 12 E Insert “http://acwc.sdp.sirsi.net/client/search/asset/1004732”129. JEM 92 1 P Replace ASTM C190 schematic with one for direct tensile strength on

cylindrical specimen similar to CRD-C164

P – Primary; E – Editorial; or S – Secondary; (“0” Pg# and Line# for General Comment)

Please provide your input on the document in each area below: Strengths:

Weaknesses:

Suggestions for improvement:

Overall opinion: