24 treff

Heterosis : a record of researches directed toward explaining and utilizing the vigor of hybrids
ed. John W. Gowen
Bok Språk ikke angitt 1952
The reliability and predictive value of short time tension tests of Portland cements
by H. Walter Leavitt and John W. Gowen
Bok Engelsk 1930
Some additional factors in the prediction of the tensile strength of sand mortars
by H. Walter Leavitt, John W. Gowen and W...
Bok Engelsk 1930
The relation of the grading characteristics of Maine sands upon their tensile strength
by John W. Gowen, H. Walter Leavitt and W...
Bok Engelsk 1929
Influence of aluminium on mortar strength
Leavitt, H. Walter
Bok Engelsk 1929
On the joint influence of iron and aluminium in native sands on mortar strength
Leavitt, H. Walter
Bok Engelsk 1929
Mechanical analysis of sand
by John W. Gowen and H. Walter Leavitt
Bok Engelsk 1927
Two inch cubes as test specimens for Portland cement
by John W. Gowen and H. Walter Leavitt
Bok Engelsk 1927
Influence of iron content on mortar strength
Leavitt, H. Walter
Bok Engelsk 1927
Mineralogical content of Maine sands in relation to mortar strength
Leavitt, H. Walter
Bok Engelsk 1927
A correlation study of the tensile strengths of Portland cement briquettes
by John W. Gowen ... [et al.]
Bok Engelsk 1926
The prediction of the 28-day tensile strength of Portland cements from their 7-day strengths
by John W. Gowen and H. Walter Leavitt
Bok Engelsk 1926
Relation of 7-day to 28-day compressive strength of mortar and concrete
by John W. Gowen and H. Walter Leavitt
Bok Engelsk 1926
The time of set as a factor in determining the strength of Portland cement
by John W. Gowen, H. Walter Leavitt and W...
Bok Engelsk 1926
A contribution of statistics to practical mortar testing
by John W. Gowen and H. Walter Leavitt
Bok Engelsk 1925
A method of measuring hardness and durability of sand
by John W. Gowen and H. Walter Leavitt
Bok Engelsk 1925
The prediction of the 28 day breaking strengths of mortars from their 7 day results
by John W. Gowen and H. Walter Leavitt
Bok Engelsk 1925
The significance of the common test methods for determining the strength of mortars
Gowen, John W.
Bok Engelsk 1925
The strength of mortars in relation to the experience and personal equation of the operator
by John W. Gowen and H. Walter Leavitt
Bok Engelsk 1925
A correlation study of the 7-day compression test upon Maine sands
by John W. Gowen and H. Walter Leavitt
Bok Engelsk 1924
A correlation study of the 7-day tension test upon Maine sands
by John W. Gowen and H. Walter Leavitt
Bok Engelsk 1924
A correlation study of the interrelationships of the breaking strengths of standard test specimens made from the same mortar with Maine sands
by John W. Gowen and H. Walter Leavitt
Bok Engelsk 1924
Milk secretion : the study of the physiology and inheritance of milk yield and butter-fat percentage in dairy cattle
by John W. Gowen
Bok Engelsk 1924
The choice of a mix for determining the compressive strength of mortars
by John W. Gowen and H. Walter Leavitt
Bok Engelsk 1923