Effects of Redispersible Polymer Powder on Mechanical and Durability Properties of Preplaced Aggregate Concrete with Recycled Railway Ballast

International Journal of Concrete Structures and Materials

Table 4 Mix proportions of four mortar samples and twelve concrete samples.

Group	Sample	W/C	Unit weight (kg/m³)
			W	C	Fine aggregate	Ballast aggregate	Polymer	Retarder
			W	C	Fine aggregate	Ballast aggregate	Polymer	A	B
Mortar	C-0	39.3%	339	862	923	–	0	1.43	1.07
	C-2		339	862	923	–	17.9	1.43	1.07
	C-6		339	862	923	–	53.6	1.43	1.07
	C-10		339	862	923	–	89.3	1.43	1.07
Concrete	C-H-0		186	473	507	1446	0	0.78	0.59
	C-H-2		186	473	507	1446	9.80	0.78	0.59
	C-H-6		186	473	507	1446	29.4	0.78	0.59
	C-H-10		186	473	507	1446	49.0	0.78	0.59
	C-M-0		186	473	507	1446	0	0.78	0.59
	C-M-2		186	473	507	1446	9.80	0.78	0.59
	C-M-6		186	473	507	1446	29.4	0.78	0.59
	C-M-10		186	473	507	1446	49.0	0.78	0.59
	C-L-0		186	473	507	1446	0	0.78	0.59
	C-L-2		186	473	507	1446	9.80	0.78	0.59
	C-L-6		186	473	507	1446	29.4	0.78	0.59
	C-L-10		186	473	507	1446	49.0	0.78	0.59