Effect of Straw Fiber Modification Methods on Compatibility between Straw Fibers and Cement-Based Materials

Table 4

The meanings of test serial number and test code.

Method of fiber treatment	Pure cement-based materials	Raw fiber untreated	Sodium silicate solution spraying	Pure acrylic polymer emulsion spraying	Organosilicon waterproof emulsion spraying	Water dipping	Lye dipping
Serial number	0	1 or (a)	2 or (b)	3 or (c)	4 or (d)	5 or (e)	6 or (f)

Test code: DN-setting time test of the SFCC paste; DS-straw fiber mass water absorption within 24 hours; DR-hydration heat test of the SFCC paste; DG-FTIR test of straw fibers; DQ-mechanical properties test of SFCC; DX-XRD test of SFCC hydration products.