2.3. Mix proportions
In order to investigate the effects of different types of LWAs and cement paste
contents on the physical and mechanical properties of LWPCs, the mixtures were
made with three types of LWAs (DA, PA, and RA) and three cement paste contents
of 15%, 20%, and 25% by volume. Nine mix proportions are summarized in Table 1.
The names of concretes were given by aggregate type and paste content. For example,
RA-15 denotes the LWPC containing RA and 15% of cement paste content by
volume.