| dc.description.abstract | This thesis examines the subject of mortar, with the aim of
presenting information that will assist in the repair of historic
masonry structures. A historical examination of two primary mortar
ingredients, lime and cement, together with a discussion of other
ingredients, establishes a basis for further scientific study. Analysis
of observed case studies yields hypotheses on mortar behavior. A survey
of published literature discloses much information about creep, a vital
element of mortar behavior. However, because in most of the previous
research the creep measurements were made on brickwork or blockwork
piers, an experimental program was devised, to measure the shrinkage and
creep in mortars alone, using a range of seven mortar mixes. Some of
the findings of D. Lenczner and A. M. Neville have been confirmed, and
considerable additional information concerning creep and shrinkage in
mortars has been obtained. Results indicate that-the, quantity of, lime
in a mortar is related to shrinkage and creep «*the richer the mortar is
in lime, the higher the values for creep and the lower the values for
shrinkage. The laboratory data can aid in the future selection of the
proper mortar for repairs to masonry buildings. | en |
