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Investigation of porosity and microfracturing in a disturbed zone with the (sup 14)CPMMA method based on samples from full-scale experimental deposition holes of the TVO research tunnel

机译:基于TVO研究隧道全尺寸实验沉积孔样本的(sup 14)Cpmma方法研究扰动区的孔隙度和微裂缝

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The porosity and microfracturing samples from the disturbed zone of full-scale experimental deposition holes in the TVO Research Tunnel were investigated with the (sup 14)CPMMA method on gneissic tonalite at the Olkiluoto site in Eurajoki in Finland. The method involved impregnation of the rocks with (sup 14)C methylmethacrylate, irradiation polymerization, autoradiography and optical densitometry with digital image processing techniques. Scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX) were used to investigate in greater detail the pore apertures and minerals in porous regions. SEM/EDX measurements were conducted on (sup 14)CMMA-impregnated samples. (6 refs., 99 figs., 2 tabs.). (Atomindex citation 27:040807)

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