| Title |
A Study on Strength Properties of the Expansive Mortar by Restrained Effects |
| Authors |
Park Chun-Young ; Kang Byeung-Hee |
| Keywords |
Chemical Prestress ; Expansive Additives ; Flow ; Compressive Strength ; Tensile Strength ; Bending Strength |
| Abstract |
In order to present a database for development and commercialization of chemical prestress mortar or concrete, executed mortar's properties that change kind of expansive additives and the rate of substitution. This is what we were able to conclude: (1) Flow increased more or less according to use of expansive additives. This phenomenon was observed by increasing paste amount that shows as substitution for expansive additives that specific gravity is smaller than that of cement. (2) Compressive strength that uses expansive additives are higher or resemblant level than that of plain mortar in restrained circumstances. This could know that chemical prestress is introduced on mortar interior by binding mortar's expansive ability. (3) The mortar that manufacture binding expansive ability expressed higher tensile strength than plain mortar in all conditions, A-K expansive additives of tensile strength improvement effect were most superior. (4) Bending strength as experiment result expressed higher strength more than plain mortar in all conditions except for B-K expansive additive. |