Brazilian Test of Concrete Specimens Subjected to Different Loading Geometries: Review and New Insights

International Journal of Concrete Structures and Materials

Table 4 Mix proportions and characteristics of concrete specimens.

	Content per m³ of concrete
Mix	21.1	21.2	30.1	30.2
Cement (kg)	372	341	465	427
Water (L)	207	190	207	190
Sand (fine aggregate) (kg)	912	703	834	631
Gravel (coarse aggregate) (kg)	724	1052	724	1052
	Characteristics^a
Water-cement ratio	0.56	0.56	0.45	0.45
Maximum gravel size (inches)	3/8	3/4	3/8	3/4
CS (MPa)-theoretical value^b	21	21	30	30
CS (MPa)-average strength values after 7 days^c	34.7	33.98	45.6	44.52

^aAditek^® 100 N additive was used in a proportion of 150 cc per 50 kg of cement to improve the workability of the blend when fabricating the cylinders.
^bTo perform the calculations, we followed the recommendation of the ACI of adding 8.5 MPa to each value.
^cEach value is the average of three cylinders. CS account for compression strength.
Bold letters means the title of the columns and represent “mix label”.