John C. (John Cresson) Trautwine.

Concrete online

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incrustation, 947 j (69).
laitance, 947 / (36), 947 A; (71),

1137.

lime in, 947 e, 947 /, 1135, 1136.
magnesia in , 947 e (14).
metals, protection, 1110 (5), 1136,

1139.
mica in , 1135, 1186 (6).



Mortar continued
mixing, 944.

mixing water, 938, 943, 947 /.
neat and sand , 1136.
needle, Vicat , 947 g (43).
normal consistency, 943 (7), 947 g

(43).

permeability, 1088 (22), 1103,
1136, 1138, 1192, 1193 (78).
for plastering, 1136.
plasticity, 1136, 1137.
properties, 947 h.
proportion of in concrete, 1136.
proportions, 1136.
quantity required, 947 d.
regrinding ,1137.
retempering , 1137.
richness, 1136.
sal ammoniac in , 1136.
salt in, 1107 (55), 1135, 1136.
sand and neat , 1136.
sand in, 946, 947 e, 947 j (65),

1135. See also under Sand,
sea water in, 947 k (72).
in sea water, 1136, 1138.
setting, 940 (3), '942 (5), 943 (8),

947 /, 1090 (39), 1137.
acceleration, 947 g (45).
calcium chloride, effect of

on , 947 g (45 c).
expansion during , 1137.
freezing, effect on, 1107 (45).
gypsum, effect of on , 947 g

(45 a).

initial and final , 947 g.
lime, effect of on , 947 e.
rate of , 1137.
retardation, 947 g (45).
sand, effect of on , 947 g

(45).
silica, effect of on , 947 g

(45).

speed, 947 g.
temperature as affected by ,

947 a (46).

sewage, effect of on , 1138.
shrinkage of, 947 e (21), 947 h

(56), 1137.

slag cement, 947 / (38).
soundness, 937, 938, 940 (3), 942
(6) , 945 (16) , 947 e (13) , 947 h
(53), 1136, 1137.
lime, effect of on , 947 e

(13).

strength, 940 (3), 941 (4), 945
(15), 947 / (34), 947 h (52),
947 i, 947 j, 1136.
age, effect of on , 947 i (64).
compressive , 947 j (66).
consistency, effect of on ,

947 / (34).
sand, effect of on , 947 j

(65).

shearing, 947 j (66).
sulphuric acid in, 1135, 1136.
tests, 937, 940, 942, 947 i (61).
Vicat needle, 947 g (43).



INDEX.



Mortar Reinforced.



Mortar continued,
in water, 947 k, 1136.
water, mixing, 938, 943, 947 /,

1136.

salt in, 1136.
Mushroom system, 1134 (51).



N.
Natural

cement. See under Cement.

mix, 1087.

Needle, Vicat , 947 g (43).
Normal consistency, 943 (7), 947 g

(43).



O.



Oil,



effect of on concrete, 1108 (71),
1138.

P.

Painting, on concrete, 1103 (138),

1137.

Paving, concrete sidewalks, 1201.
Piles, concrete in , 1101 (124).
Placing. See Concrete, placing.
Plaster of Paris, 947 g (45 a), 947 h
(55), 1135. See also Gypsum.

effect of on metals, 1136.
Plastering,

mortar for , 1136.
Plums (cyclopean concrete), 1085,

1090 (40), 1187 (15).
Pointing, 947 j (70).
Portland cement. See under Ce-
ment.

Pozzuolano, 930 (4), 932.
Preservation of metals, 1136.
Priddle internal-bond bar, 1131 (28).
Principal stresses, 494 c, 494 g.
Protection of metals, 1136.
Puzzolano, 930 (4), 932.



Q.

Quartering of sand, gravel etc, 946

(4).
Quartz,

as aggregate, 1137.

weight, 947 a (19).
Quick lime, 931 (7), 947 e (12).



R.

Ramming, 1100, 1137, 1189, 1190.
cost of , 1210 (47, 48).

Rankine column formula, 1113 (10).

Ransome bar, 1130 (21).

Reinforced concrete, 1110, 1139.
See also under the structure in
question, and name of type of
reinforcement in question. See
also Reinforcement.



Reinforced concrete continued.

adhesion, 1106 (37), 1111, 1126,
1128 (6), 1129 (9, 15, 16),
1139, 1196 (113, etc),
-unit, 1126.

aggregate for, 1110 (7). See
also under Aggregate.

anchor plates, 1129.

bars. See Reinforcement, bars.

beams. See Beams, reinforced
concrete .

clearance, 1196.

coefficient, expansion , 1110 (9),
1138.

columns, 1112, 1134, 1197. See
also Columns, reinforced con-
crete .

conductivity, thermal , 1138,
1139.

continuous beams, 1126, 1127, 1200.

contraction, 1110.

cost, 1210 (57-8).

elastic modulus, 1110, 1195 (107).
ratio, n, of , 1111 (14), 1195
(107), 1198 (153).

electrolysis, 1108 (68), 1138, 1139.

elongation, 1111 (16).

expansion, 1110, 1138.

experiments, 1139.

fire, effect of on, 1108 (62,
63, 65), 1138, 1139.

in fireproof work, 1196 (120).

forms, 1095, etc. See also Forms.

friction, 1111 (18), 1139.

floors, 1096 (67), 1098 (93), 1198.
forms for , 1098 (93).

initial stresses in , 1199 (159).

methods of reinforcement, 1127.

moments in, 1116 (7), 1117,
1118 (14, 17), 1121, 1122, 1123.

permit, 1196.

pillars. See Columns, reinforced
concrete .

proportions, 1087 (13).

reinforcement. See Reinforce-
ment. See also name of type
in question.

shear, 1123, 1139.

shearing stress, permissible, 1199

shrinkage stress, 1199 (159).

slabs, 1122, 1123, 1128 (5), 1199
(167), 1200, 1201.

steel in, 1110 (5, 6), 1139.
corrosion, 1110 (5), 1139.

stirrups, 1124, 1128 (3), 1139,
1199 (162).

strength, 1110-1123.

stresses in, 1116 (8), 1117, 1118
(13,15,16), 1121, 1122 (21-
23), 1123 (32), 1125, 1127
(66), 1139, 1198, 1199.

stretch, 1111 (16).

tests, 1200.

thermal conductivity, 1138, 1139.

thermal stresses in , 1199 (159).

unit adhesion, 1126.



INDEX.



Reinforcement Sand.



Reinforcement, 1127, etc, 1139,

1194. See also name of type

in question.

adhesion, 1106 (37), 1111, 1126,
1128 (6), 1129 (9, 15, 16),
1139, 1196 (113, etc),
bars, 1110, 1128-1131, 1139, 1194.

corrugated, 1131 (24).

cup, 1131 (25).

deformed, 1110 (6), 1129 (15,
16), 1139, 1194.

diamond, 1131 (26).

lug, 1131 (22).

plain, 1129 (10), 1139.

supports for , 1131.

trussed , 1133.
clearance, 1196.
in columns, 1112, 1134, 1197 (129,

etc).

conductivity, thermal, 1139.
corrosion of , 1139.
cost, 1207 (11).
disturbance of , 1139.
double , 1127, 1199 (165-6).
electrolysis, 1139.
expanded metal, 1132 (37).
friction, 1111 (18), 1139.
lapping, 1196 (116).
lath, rib, 1133.
length, 1196 (116).
metal, expanded , 1132 (37).
metal, rib, 1132 (41).
methods of, 1110, 1127, 1139,

1194, 1199.

mushroom system, 1134 (51).
percentage of, 1139, 1207 (12).
placing, cost, 1209 (45).
proportions, 1139, 1207 (12).
protection, 1196 (117).
rib lath, 1133.
rib metal, 1132 (41).
rods, supports for , 1131.
shapes, structural , 1133.
shear, 1124, 1126 (55-57), 1128

(3), 1139.

steel for, 1139, 1195 (100, etc),
stirrups, 1124, 1128 (3), 1139.

spacing of, 1199 (162).
strength of, 1139.



max allowed, 1195.

structural shapes, 1133.

supports for , 1131.

tension - in 'top of beam, 1127,
1199 (165-6).

thermal conductivity, 1139.

trussed, 1128 (2), 1133.

types of, 1110, 1127, 1139, 1194,
1199.

web, 1132, 1199 (164).

welded wire, 1132 (40).

wire lath, 1132.
Retaining walls,

cost, 1210 (59).
Rib lath, 1133.
Rib metal, 1132 (41).



Rod, rods,

for reinforced concrete, 1110

1128, etc, 1131, 1139, 1194.
Roman cement, 931 (12).
Rosendale cement, 931 (11).

S.

Safety

factor. See the material or con-
struction in question.
Sal ammoniac, in mortar, 1136.
Salt,

in concrete, 1107 (55), 1108 (67,

70).

in mortar, 1107 (55), 1135, 1136.
in water for mortar, 1136.
Sand,

analysis, 946.
in cement mortar, 947 e.
character of, effect of, 1135.
clay in, 1135, 1186 (6).

test for, 947 c (32).
coefficient, uniformity , 947,

1135.

compacting, 1135.
composition, 946.
in concrete, 947 e.
for concrete sidewalks, specfns,

1201 (2).
cost, 1207 (8).
vs crushed limestone, 1135.
definition, 946 (1).
density, 947 a, 1135.

moisture, effect of , on ,

947 b.
dirt in, 947 c, 1186 (6).

strength of mortar, 947 e (23),

1135.

effective size, 947.
fineness, 947 e (18), 1135.

shrinkage of mortar, 947 e (21),

947 h (58).
foreign matter in , 947 e (23),

1135, 1186 (6).
friction of , 1135.
fusing point, 1135.
grading of , 1135.
grains,

shape of, 947 b, 1135,
size, 946, 947 6, 1186 (6).
granulometric analysis, 946.
impurities in, 947 e (23), 1135,

1186 (6).

vs limestone, crushed , 1135.
loam in, 1135, 1186 (6).

test for, 947 c (32).
mechanical analysis, 946.
mica in, 1135, 1186 (6).
moisture in , 947 6, 1135, 1186

(6).
in mortar, 946, 947 e, 1135. See

also Mortar.

properties, 946, 947 c. See also
property in question, under
Sand.

proportion of , in mortar, 947 d
(4).



INDEX.



Sand Tangential.



Sand continued.

quantities required in mortar, 947
d (4).

quartering, 946 (4).

vs screenings, 947 e (24), 947 /
(27), 1135, 1186 (7).

shape of grain, 947 6, 1135.

sharpness, 947 e (22), 947 c, 1186
(5).

silt in, 947 c (32).

size, effective , 947.

size of grain, 946, 947 6, 1186 (6).

specific gravity, 947 a (19).

specifications, 1186.

standard, 944 (9).

-stone

as aggregate, 1137.

storage, 1186 (6).

strength of mortar, 947 j (65).

uniformity coefficient, 947, 1135.

voids in, 947 a, 1135.

washing, 947 c (34).

weight, 947 a (19), 947 e.
Screening, Screenings, 946 (3), 1208
(17).

gravel, 947 / (26), 946 (3), 1137.

vs sand, 947 e (24), 947 / (27),
1135, 1186 (7).

stone , 947 / (27), 1137.
Sea water

effect on concrete, 947 k, 1108
(67), 1136, 1138.

in mortar, 947 k (72).
Set, 456, 459.

permanent , 456, 459.
Setting. See Mortar, and Concrete.
Sewage, effect on concrete, 1138.
Shale, as aggregate, 1137.
Shapes, structural ,

for reinfmt, 1133.
Shear,

in concrete beams, J123.

horizontal , 494 c, 494 e.

in reinforced concrete beams , 1 1 23 .

reinfmt, 1124, 1126 (55-7), 1128
(3).

unit, 494 e.

in reinfd cone beams, 1125.

vertical, 494 c, 494 e.
Shearing,

stress, 454.

Sidewalks, concrete , 1201.
Silica cement, 932 (25).
Size, effective , 947.
Slabs, reinfd cone, 1122, 1123,

1128, 1199 (167), 1200, 1201.
Slacking, 931.
Slag cement, 930, 932.
Slaking, 931.
Soap and alum process, 1105 (20),

1137.

Soundness, 937, 938, 940 (3), 942
(6), 945, 947 e (13), 947 h, 1136,
1137.
Specific gravity,

test, LeChatelier method, 942.



Specifications

for cement, 937, 940, 942.
for concrete, 1184, 1186.
blocks, 1204.
sidewalks, 1201.

Steam, effect on concrete, 1138.
Steel,

bending tests, 1195 (109).
in concrete. See Reinforced con-
crete, steel in , and Rein-
forcement.

elastic modulus, 1110 (11).
in reinforced concrete. See Re-
inforced concrete, steel in ,
and Reinforcement, steel .
structural -, elastic modulus, 460.
Stirrups, 1124, 1128 (3), 1139.
spacing, 1199 (162).
supporting reinforcement, 1131

(31).

Stone, stones,
artificial, 1193.
broken, 1137.

voids, in, 1085, 1088.
cost, 1207 (10).
large , in concrete, 1085, 1090

(40), 1187 (15).
screenings, 947 / (27), 1137.
work, mortar required for , 947 d.
Strength, 454. See also under Con-
crete, Mortar, and Reinfd cone.
Stress, Stresses,
components, 454.
compressive^ , 454.
diagonal , in beams, 494 a, 494 e,

1125.
maximum , in beams, 494 a,

494 e.

principal, 494 r , 494 g.
in reinforced concrete beams,

1115-1123, 1125, 1127 (66).
shearing , 454.
tensile , 454.
torsional , 454.
transverse , 455.
ultimate , 456.
unit, 456, 458.

actual and nominal , 456.
Stretch, 454, 455, 459.

unit, 458.
Structural shapes,

for reinfmt, 1133.
Suddenly applied loads, 461.
Sulphuric acid, in mortar, 1135, 1136.
Sulphate, lime , 947 g (45 a), 947 h

(55), 1135.

Sunshine, effect on concrete, 1138.
Sylvester process, 1105 (20), 1137.



T.

T-beams, 1122, 1199 (171).
Tamping,

concrete, 1100, 1137, 1189, 1190,

1210 (47, 48).
Tangential stress, 454.



INDEX.



Tensile Zinc.



Tensile

strength, 454.

stress, 454.
Tension, 454.
Test, Tests,

of cement, 936, 937, 940, 942,
947 i (61, 62), 1186 (2).

of concrete, 1109, 1200.
Testing machine for cements, 938.
Thacher bar, 1131 (23).
Thermal conductivity, 1138, 1139.
Tie-rods, in forms, 1189 (36).
Torsion, 454.
Tremie, 1100 (116).
True elastic limit, 459.
Truss reinforcement, 1128 (2), 1133.
Trussed

bar, 1133.

reinforcement, 1128 (2), 1133.
Turner, C. A. P. ,

mushroom system, 1134 (51).

U.

Ultimate stress, 456.

Uniformity coefficient, 947, 1135.

Unit, Units,

adhesion , 1126.

frame, 1133.

shear, 494 e.

in reinfd cone beams, 1125.

V.

Vertical

shear, 494 c, 494 e.
Vicat needle, 947 g (43).
Voids,

in broken stone, 1088.

in concrete, 1088, 1137.

in sand, 947 a, 1135.



Volume,

constancy of (soundness), 937,
938, 940 (3), 942 (6), 945 (16),
947 e (13), 947 h, 1136, 1137.



W.

Wall, Walls,

concrete , forms, 1096 (68).
retaining , concrete ,

cost, 1210 (59).
Washing concrete, cost, 1208 (18),

1210 (51).
Water,



effect on

concrete, 947 k, 1108 (67),

1136, 1138.
mortar, 947 k (72).
Web reinforcement, 1132, 1199

(164).

Welded wire, 1132 (40).
White

efflorescence on walls, 947 j.
Portland cement, 933 (29).
Wire,

lath, 1132.
welded, 1132 (40).



Y.

Yield point, 455, 460.

Z.

Zinc, effect of cement mortar on ,
1136.




THE END.



*>ftiX



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OVERDUE.

W. 27 1933





92880



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Online LibraryJohn C. (John Cresson) TrautwineConcrete → online text (page 23 of 23)