Laserfiche WebLink
� . . <br /> State of Illinois <br /> Departaeat vf Tz$nspor'tation <br /> SP�CT.AL �ROVISIOH <br /> FOR• <br /> USE OP CEOTECH2�IChI. PABRIC F08 RAILROAD. C30SSINCS <br /> Effective Hay l, 1988 � <br /> Descrivtion. This xork shall consist of furaishing all msterials, equipmeat <br /> and labor� and•of perforaing all required operat_ons in the installation of <br /> Ceotechnical Fabric for Railroad Crossiags. <br /> Haterial. The geotechnical fabric shall consist of uovea monofi?ameats� and <br /> nonrroven filameaca of polypropyleae, polyeater or pelyethyline. NonKoven , <br /> fabric may be aeedle punched, heat bonded, resia—bounded or combinacions <br /> thereof. The fabric ahaL be inert te co�moaly encouatered chemicals, rot • <br /> proof, dimensionally atable (i.e. , fibers must zsaintain their re�ative <br /> posicion uith respect to each other) , reaistant to delamiaation and to, <br /> ultraviolet light degradatioa, and coaform to the follo�r±ng physical <br /> properzies. • <br /> S�7eight (az/aq.yd.) •. 10.0 min ASTH D 3776 <br /> Crab tensile strength (lbe.)1 250.0 min 1LSTM D 4632 <br />� . Crab elongation @ break (�) 20.0 min ' AST2i D 4632 <br /> Dursting Strength (psi)2 350.0 min ASTM D 3786 <br /> Trapezoidal tear at:esigth (lbe)2 100.0 min ASTH D 4533 <br /> Puncture St=ength (l.bs)2 130.0 miri ASTH D 751/D <br /> 3787 <br /> Equivaleat opeaing size (EOS) aieve No. 2 50.0 min COE CN 02215 <br /> Open area, �oven anly (:)2 • J 4.0 min COE <br /> 1 Test samples for grab� teasi?e atrengt�a and e?ougation shall. be te9te3 <br /> Wet. <br /> 2 N.anufac�urer's certificatioa of fabric to aeet requirement. <br /> 'I'he vendor shul? furaish certified test repor:s u�th each shipment of 'msterial <br /> atte,s[ing that the fabrwc meeta the requiremeats of thia apecificsrion.' <br /> Handlinq and Stora�e. Fabric eh.all be dei{vered to the job site in auch a <br /> aanner as co Facilltate handling and iacorporat'_oa into the Work srithout <br /> danage. In no caee eha11. the fabric be stored er expased to d!'rect sunlight <br /> that might significanz!y diainiah its atrength or toughaess. <br /> Inatallation. Ceotechnical fabric eha11 be placed oa esistias subgrade ' <br /> c!aared or dehris and sharp objec�s to preveat ds=age• to the fabric. Extra <br /> care aha11 be takea noc to puncture the fabric du�'ng compaction of the <br /> ballast. Base oi tie ahall be at lenst S inches over the fabric or as shocrn <br /> on the plans. ' _ <br /> . �, <br /> . 3836I ' . , � <br />