Page 62 - Highway Engineering Handbook Building and Rehabilitating the Infrastructure

1–2 1–2 1 2–3 2–3 1–2 4–5 1 1

3–4 4–5 3–4 3–4 2–4 4 1–2 3–4 3–4

4 4 2–3 3–4 2–4 4 1 4 5

3 4–5 5 4 4–5 4–5 1 4–5 4–5 2d ed., Steel Structures Painting Council/KTA-Tator, Inc., Pittsburgh, 1993, with permission, and

4–5 4–5 2–5 5 3–4 3–4 Ratings dependent upon combinations of methods used. 5 2–5 2–5

2–3 2–3 1 4–5 1–2 1 5 1 1

4–5 4–5 1 4–5 1–2 1 5 1 1 f Most contractors already own much of this equipment. Therefore, even though the purchase price is high, little additional investment may be needed.

2–3 2–3 3 5 2–3 2–3 5 2–4 1–2 g Additional methods supplied by K. A. Trimbler, 2002, with ratings for these specific methods developed based on general experience.

4–5 4–5 3–4 5 3 2–3 5 3–4 3–4

4 3 3–4 2–3 2–3 1 2–4 1 1 a 5, very inexpensive; 4, inexpensive; 3, moderately expensive; 2, expensive; 1, very expensive. b 5, highly effective; 4, effective; 3, moderately effective; 2, poor; 1, very poor (ineffective). From K. A. Trimbler, Industrial Lead Paint Removal Handbook,

Power-tool cleaning Power-tool cleaning to bare metal with vacuum attachment Chemical stripping Sponge jetting Sodium bicarbonate Carbon dioxide blast Combinations of Abrasive blasting with proprietary additive Thermal spray Laser paint removal g c 5, excellent; 4, good; 3, marginal; 2, poor; 1, very poor. d 5, no/none; 4, little/low; 3, moderate; 2, sizable; 1, substantial. e 5, very high; 4, high; 3, moderate; 2, low; 1, very low.

Method 12. to bare metal Method 13. Method 14. Method 15. Method 16. blast cleaning Method 17. cleaning Method 18. removal methods Method 19. for lead stabilization g Method 20. vitrification g Method 21. Source: personal communication, 2002.

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