1.3.2.1 Sulfur
The initial application forsulfur mortars was to replace lead for joiningbell
and spigot cast ironw ater lines. Since then, sulfur mortars have been
successfully used for installing brick floors, brick-lined tanks, and joining
bell and spigotv itrified clay pipe for corrosive waste sewerl ines in the
chemical, steel, and metalworkingindustries. Sulfur mortars are plasticized
to impart thermal shock resistance. They utilize 100% carbon or 100%
silica fillers.
Because of their outstanding resistance to oxidizing acids,t he 100%
carbon-filled sulfur mortar is the mortaro fc hoice for installing carbon
bricki nt he nitric/hydrofluorica cidp icklersi nt he specialty steel
industry.
Both the 100% carbon and the 100% silica mortars have found widespread
use in the plating, galvanizing specialty,a nd carbon steel industries.
Advantages to usings ulfur mortars when compared to somer esin mortars
are as follows:
1. Resistance to oxidizing, nonoxidizing, and mixed acids
2. Ease of use
3. High earlys trength; “cooli t–use it”
4. Resistance to thermal shock
5. Unlimited shelf life
6. Prefabrication and in-place construction
7. Economy
The many advantages of sulfur mortars makethem ideal for applications
suchassetting of anchorbolts and posts, capping of concrete test cylinders,
“proving” of molds for castings and hubs for grinding wheels.
Ad isadvantage of sulfur mortars is flammability. When sulfur mortar
masonry sheathings are beingi nstalled, melting equipment is placed outdoorsand molten materials moved to the point of use, thereforeminimizing
potential for flammability problems.
Installation of brick linings on vertical surfaces with sulfur mortars utilizes
the conceptofdry-laying brick by placingthe brick on sulfur mortarspacer
chips, papering the face of the brick to damt he joint, and pouringb ehind
the brick to fill the joints. Horizontal surfaces are poured until the mortar
comesu pi ntot he joints approximately 1/4 in. from the top of the brick. A
final “flood pour” is madeo ver the entire surface, thereforee nsuring full
flush joints. As soon as the joints cool, the installation is ready fors ervice.
Approximately 95% of the compressive value of sulfur mortars is attained
5min after the mortar has solidified. Table1 .8 provides comparative
chemical resistance to environments most commonly experienced in industries where sulfur mortars are used.
Corrosion of Linings and Coatings
14
CAT8247—CHAPTER 1—6/10/2006—11:59—SRIDHAR—XML MODEL B–pp. 1–42
The initial application forsulfur mortars was to replace lead for joiningbell
and spigot cast ironw ater lines. Since then, sulfur mortars have been
successfully used for installing brick floors, brick-lined tanks, and joining
bell and spigotv itrified clay pipe for corrosive waste sewerl ines in the
chemical, steel, and metalworkingindustries. Sulfur mortars are plasticized
to impart thermal shock resistance. They utilize 100% carbon or 100%
silica fillers.
Because of their outstanding resistance to oxidizing acids,t he 100%
carbon-filled sulfur mortar is the mortaro fc hoice for installing carbon
bricki nt he nitric/hydrofluorica cidp icklersi nt he specialty steel
industry.
Both the 100% carbon and the 100% silica mortars have found widespread
use in the plating, galvanizing specialty,a nd carbon steel industries.
Advantages to usings ulfur mortars when compared to somer esin mortars
are as follows:
1. Resistance to oxidizing, nonoxidizing, and mixed acids
2. Ease of use
3. High earlys trength; “cooli t–use it”
4. Resistance to thermal shock
5. Unlimited shelf life
6. Prefabrication and in-place construction
7. Economy
The many advantages of sulfur mortars makethem ideal for applications
suchassetting of anchorbolts and posts, capping of concrete test cylinders,
“proving” of molds for castings and hubs for grinding wheels.
Ad isadvantage of sulfur mortars is flammability. When sulfur mortar
masonry sheathings are beingi nstalled, melting equipment is placed outdoorsand molten materials moved to the point of use, thereforeminimizing
potential for flammability problems.
Installation of brick linings on vertical surfaces with sulfur mortars utilizes
the conceptofdry-laying brick by placingthe brick on sulfur mortarspacer
chips, papering the face of the brick to damt he joint, and pouringb ehind
the brick to fill the joints. Horizontal surfaces are poured until the mortar
comesu pi ntot he joints approximately 1/4 in. from the top of the brick. A
final “flood pour” is madeo ver the entire surface, thereforee nsuring full
flush joints. As soon as the joints cool, the installation is ready fors ervice.
Approximately 95% of the compressive value of sulfur mortars is attained
5min after the mortar has solidified. Table1 .8 provides comparative
chemical resistance to environments most commonly experienced in industries where sulfur mortars are used.
Corrosion of Linings and Coatings
14
CAT8247—CHAPTER 1—6/10/2006—11:59—SRIDHAR—XML MODEL B–pp. 1–42