1.2M aterials Selection
The success or failure of ac hemical-resistant mortar, grout, or monolithic
surfacing is based on proper selection of materials and theirapplication.
To select the proper material, the problem must first be defined:
1. Identify all chemicals that willbepresent and their concentration.
It is not enough to say that pH will be 4, 7, or 11.This determines if
it is acid, neutral, or alkaline; it does not identify whether the
environment is oxidizing or nonoxidizing, organic or inorganic,
alternately acid or alkaline, etc.
2. Is the application fumes and splash or total immersion? Floors can
have integral trenches and sumps, curbs, pump pads.
3. What are the minimumo rm aximum temperatures to which the
installation willb es ubjected?
4. Is thei nstallation indoors or outdoors?T hermal shocka nd
ultraviolet exposure can be deleterious to many resin systems.
5. What are the physical impositions? Foot traffic vs. vehicular traffic,
impact from dropping steel plates vs. paper boxes, etc., must
be defined.
6. Longevity—howl ongm ust it last?I sp rocess obsolescence
imminent? This could have ap rofound effect on cost.
7. Must it satisfy standards organizations such as USDA or FDA?
Some systems do not comply.
8. Are the resinsystems odoriferous? This could preclude their use in
manyp rocessing plants such as food, beverage, and pharmaceutical. Manys ystems are odoriferous.
Answers to these questions will provide the necessary information to
make ap roper selection from the available resin system.
1.3C hemical-Resistant Mortarsa nd Grouts
Chemical-resistant mortars and grouts are composed of al iquidr esin or
an inorganic binder, fillers such as carbon,silica, and combinations thereof,
and ah ardener or catalyst system that can be incorporated in the filler or
added as aseparate component.
The workability of am ortar or grout is predicated on properly selected
fillers or combinations of fillers, particle size and gradation of these fillers,
resin viscosity,a nd reactivity of catalysts and hardeners. Improper filler
gradationa nd high-viscosity resins produce mortars with poorw orking
Chemical Resistant Mortars, Grouts, and Monolithic Surfacings
3
CAT8247—CHAPTER 1—6/10/2006—11:58—SRIDHAR—XML MODEL B–pp. 1–42
The success or failure of ac hemical-resistant mortar, grout, or monolithic
surfacing is based on proper selection of materials and theirapplication.
To select the proper material, the problem must first be defined:
1. Identify all chemicals that willbepresent and their concentration.
It is not enough to say that pH will be 4, 7, or 11.This determines if
it is acid, neutral, or alkaline; it does not identify whether the
environment is oxidizing or nonoxidizing, organic or inorganic,
alternately acid or alkaline, etc.
2. Is the application fumes and splash or total immersion? Floors can
have integral trenches and sumps, curbs, pump pads.
3. What are the minimumo rm aximum temperatures to which the
installation willb es ubjected?
4. Is thei nstallation indoors or outdoors?T hermal shocka nd
ultraviolet exposure can be deleterious to many resin systems.
5. What are the physical impositions? Foot traffic vs. vehicular traffic,
impact from dropping steel plates vs. paper boxes, etc., must
be defined.
6. Longevity—howl ongm ust it last?I sp rocess obsolescence
imminent? This could have ap rofound effect on cost.
7. Must it satisfy standards organizations such as USDA or FDA?
Some systems do not comply.
8. Are the resinsystems odoriferous? This could preclude their use in
manyp rocessing plants such as food, beverage, and pharmaceutical. Manys ystems are odoriferous.
Answers to these questions will provide the necessary information to
make ap roper selection from the available resin system.
1.3C hemical-Resistant Mortarsa nd Grouts
Chemical-resistant mortars and grouts are composed of al iquidr esin or
an inorganic binder, fillers such as carbon,silica, and combinations thereof,
and ah ardener or catalyst system that can be incorporated in the filler or
added as aseparate component.
The workability of am ortar or grout is predicated on properly selected
fillers or combinations of fillers, particle size and gradation of these fillers,
resin viscosity,a nd reactivity of catalysts and hardeners. Improper filler
gradationa nd high-viscosity resins produce mortars with poorw orking
Chemical Resistant Mortars, Grouts, and Monolithic Surfacings
3
CAT8247—CHAPTER 1—6/10/2006—11:58—SRIDHAR—XML MODEL B–pp. 1–42