ESSAYS

ON

HYDRAULIC AND COMMON MORTARS

AND ON

LIME-BURNING.

TRANSLATED FROM THE FRENCH OF GEN. TREUSSART, M. PETOT,

AND M. COURTOIS.

WITH BRIEF OBSERVATIONS

ON COMMON MORTARS, HYDRAULIC MORTARS,

AND

CONCRETES,

AND AN ACCOUNT OF SOME EXPERIMENTS MADE THEREWITH AT FORT ADAMS, NEW
PORT HARBOUR, H. L, FROM 1925 TO 1838.

FOR LIBRAES
NEW-YORK

BY J. G. TOTTEN,

LT. COL. OF ENGINEERS AND BREVET COL. U. S. ARMY.

PHILADELPHIA:

1838

$E

Entered according to the act of Congress, in the year 1838,

BY THE FRANKLIN INSTITUTE,

OF THE STATE OF PENNSYLVANIA, FOR THE PROMOTION OF THE MECHANIC ARTS,

In the Clerk's Office of the District Court of the Eastern District of Pennsylvania.

MOY WE

SECTION FIRST.

ON MORTARS PLACED UNDER WATER, BY GEN. TREUSSART.

Chapter I.—On Lime—actual state of our knowledge of Lime,

Chapter II.-On slaking lime; manner of making mortar; observations on

hydrate of lime,

Chapter III.—Experiments on several hydraulic limes of the environs of

Strasburg-on the Metz lime, and on Boulogne pebbles,14 to 36

Chapter IV.-Of artificial hydraulic lime,
Chapter V.-On hydraulic mortars made of fat lime and trass, or fat lime
and puzzalona,

Chapter VI.-Of artificial trass and puzzalona,

Chapter VII.-Various experiments on mortars placed under water,

Chapter VIII.-On sand, and hydraulic sand, (arènes)

Chapter IX.-On Concrete-Circumstances in which it is advantageous to

36 to

52

52 to 62

62 to 96

96 to 113

113 to 118

118 to 127

127 to 132

ON MORTARS IN THE AIR BY GEN. TREUSSART.

Chapter XI.-Of mortars made of lime, sand and puzzalona,

Chapter XII. Of mortars made of hydraulic lime and sand, or of hydraulic

lime and puzzalona,

Chapter XIII. Various experiments with mortars exposed to the air,

Chapter XIV.-Observations on mortars exposed to the air,

Chapter XV.-On factitious stones and concretes, exposed to the air,

Chapter XVI.-Summary of the second section,

SECTION THIRD.

EXTRACTS FROM RESEARCHES AS TO LIME BURNING, BY

M. PETOT. $ G.

Chapter XVII. On the preparation of factitious puzzalona, and particularly

Chapter XVIII.—On the preparation-the preservation, and the use of

Chapter XIX.—On the change in hydraulic limes, and on the solidification

plaster-cements,

of mortars in general,,

SECTION FOURTH..

169 to 180

180 to 193

194 to 203

BRIEF OBSERVATIONS ON COMMON MORTARS, HYDRAULIC MOR-
TARS AND CEMENTS, BY COL. TOTTEN.

Chapter XXIII.-On lime-hydraulic cement-sand-mortar making-

Chapter XXIV.-Observations and experiments on concrete, &c.

strength of mortars and grout,

227 to 242

243 to 252

Description of the Plates,

Chapter XXV. Some recent experiments with mortars made of lime and

sand,

TIBKVKA