C h a ra c te riz a tio n o f re c y c le d g y p s u m Jimé ne z-Rive ro , A., Ga rc ía -Na va rro , J. G RUPO D E INV ESTIG A C IÓ N SO STENIBILID A D EN LA C O NSTRUC C IÓ N Y EN LA IND USTRIA Prof. Justo Ga rc ía Na va rro, Dr. Arquite c to 4 th INTERNA TIO NA L C O NFERENC E o n Su sta in a b le So lid W a ste M a n a g e m e n t, Lim a sso l - C YPRUS 2 0 1 6
TA BLE O F C O NTENTS 1. I NT RODUCT I ON 2. ME T HODOL OGY 3. RE SUL T S AND DI SCUSSI ON 4. CONCL USI ON 4th I NT E RNAT I ONAL CONF E RE NCE o n Susta ina b le So lid Wa ste Ma na g e me nt, CYPRUS 2016 2 o f 15
Introduc tion - Me tho do lo g y – Re sults a nd disc ussio n - Co nc lusio n C URRENT SITUA TIO N Aro und 4/ 5 a of g ypsum produc ts ma nufa c ture d in the E U is pla ste rboa rd . An e stima te d a mo unt o f 1.9 million tonne s o f po st-c o nsume r pla ste rb o a rd wa ste wa s g e ne ra te d in the E U-27 in 2013 b , o f whic h o nly 6% wa s re c yc le d into pla ste rb o a rd. T he re fo re , the use o f re c yc le d g ypsum (RG) is still ve ry lo w in the E U. F o r e xa mple , the we ig ht pe rc e nta g e o f post- c onsume r RG in a r e fe r e nc e pla ste rboa rd wa s re c e ntly e stima te d to be 1 %. a E uro sta t, 2012 b E uro sta t, 2012 a nd Gto G DA1 re po rt 4th I NT E RNAT I ONAL CONF E RE NCE o n Susta ina b le So lid Wa ste Ma na g e me nt, CYPRUS 2016 3 o f 15
Introduc tion - Me tho do lo g y – Re sults a nd disc ussio n - Co nc lusio n TO W A RDS A NEW A PPRO A C H T he wa ste c ha in ne e ds to b e upg ra de d in o rde r to ma ximize re c yc la b le g ypsum wa ste a nd e nsure q ua lity re c yc le d g ypsum. I n a c irc ula r e c o no my… po st-c o nsume r wa ste is e ffe c tive ly c o lle c te d, re c yc le d a nd use d to ma ke ne w pro duc ts; virg in ra w ma te ria ls a re use d o nly whe n se c o nda ry ra w ma te ria ls a re no t a va ila b le . 4th I NT E RNAT I ONAL CONF E RE NCE o n Susta ina b le So lid Wa ste Ma na g e me nt, CYPRUS 2016 4 o f 15
Introduc tion - Me tho do lo g y – Re sults a nd disc ussio n - Co nc lusio n G to G PRO JEC T L ife + Gto G Pro je c t E NV/ BE / 001039: “F ro m Pro duc tio n to Re c yc ling , a Circ ula r E c o no my fo r the E uro pe a n Gypsum I ndustry with the De mo litio n a nd Re c yc ling I ndustry” 4th I NT E RNAT I ONAL CONF E RE NCE o n Susta ina b le So lid Wa ste Ma na g e me nt, CYPRUS 2016 5 o f 15
Introduc tion - Me tho do lo g y – Re sults a nd disc ussio n - Co nc lusio n G TO G IM PLEM ENTA TIO N A C TIO NS T he wo rks inc lude d pilo t pro je c ts in distinc t E uro pe a n lo c a tio ns: Be lg ium, F ra nc e , Ge rma ny, the Ne the rla nds a nd the Unite d K ing do m, in the sta g e s pa rt o f the de c o nstruc tio n-re c yc ling va lue c ha in. De c o nstruc tio n Re c yc ling Re c yc le d g ypsum re a dy to b e re inc o rpo ra te d into the pla ste rb o a rd ma nufa c turing pro c e ss wa s the n o b ta ine d. 4th I NT E RNAT I ONAL CONF E RE NCE o n Susta ina b le So lid Wa ste Ma na g e me nt, CYPRUS 2016 6 o f 15
Introduc tion - Me tho do lo g y – Re sults a nd disc ussio n - Co nc lusio n G TO G IM PLEM ENTA TIO N A C TIO NS 21 g ypsum fe e dsto c k sa mple s we re te ste d. Busine ss-a s-usua l fe e dsto c k (GY BAU ) wa s c o mpa re d to re c yc le d g ypsum fe e dsto c k (GY RG ). GY BAU : Co nve ntio na l g ypsum a s c urre ntly use d in the E U ma nufa c turing pla nts: 4 sa mple s fro m pla nts using mine d g ypsum, 3 sa mple s fro m pla nts using F GD, 1 sa mple o f pre -c o nsume r re c yc le d g ypsum Sa mple s supplie d b y 5 g ypsum ma nufa c ture rs in BE , DE , F R (2), UK N=8 GY RG : 100% re c yc le d g ypsum fro m pre a nd po st-c o nsume r so urc e s Sa mple s supplie d b y 2 g ypsum re c yc le rs o pe ra ting in BE , F R, NL , UK N= 13 4th I NT E RNAT I ONAL CONF E RE NCE o n Susta ina b le So lid Wa ste Ma na g e me nt, CYPRUS 2016 7 o f 15
Introduc tion - Me tho do lo g y – Re sults a nd disc ussio n - Co nc lusio n M A IN O BJEC TIV E O F THIS STUDY T o a na lyse re le va nt pa ra me te rs tha t c ha ra c te rize g ypsum a s a ra w ma te ria l (b usine ss-a s-usua l (BAU) g ypsum fe e dsto c k a nd re c yc le d g ypsum (RG) fe e dsto c k). T he sa mple s we re c o lle c te d b y L OE MCO (Offic ia l L a b o ra to ry fo r T e sting Ma te ria ls o f Co nstruc tio n, third pa rty la b o ra to ry, pa rtne r o f the Gto G pro je c t) during the Gto G pro je c t, b e twe e n F e b rua ry 2014 a nd Ja nua ry 2015. 4th I NT E RNAT I ONAL CONF E RE NCE o n Susta ina b le So lid Wa ste Ma na g e me nt, CYPRUS 2016 8 o f 15
I ntro duc tio n - Me thodolog y – Re sults a nd disc ussio n - Co nc lusio n M ETHO DO LO G Y Gypsum a s fe e dstoc k: re c yc le d g ypsum qua lity c rite ria T he e xpe rime nta l me tho ds b a se d o n fo ur E uro pe a n do c ume nts: T he I nstruc tio n She e t VGB-M 701: fre e mo isture , purity, sa lts a nd pH; T he E uro pe a n Sta nda rd E N 933-1: pa rtic le size re sults; E N 13137: to ta l o rg a nic c a rb o n (T OC); E N I SO 11885: to xic o lo g ic a l pa ra me te rs; Ra dio a c tivity inde x a c c o rding to the RP 112 do c ume nt (E C); Asb e sto s c o nte nt a c c o rding to the Rie tve ld me tho d . 4th I NT E RNAT I ONAL CONF E RE NCE o n Susta ina b le So lid Wa ste Ma na g e me nt, CYPRUS 2016 9 o f 15
I ntro duc tio n - Me tho do lo g y – Re sults a nd disc ussion - Co nc lusio n RESULTS PART ICL E SIZE GtoG Pa ra me te r Unit proje c t GY BAU a nd GY RG ha d simila r g uide line s ma ximum size . Ho we ve r, the de via tio n wa s hig he r fo r the mm 15.00 Ma ximum size c a se o f GY BAU. % w/ w <10 F re e moisture No te : % w/ w >80 Purity Va ria tio ns in the pa rtic le size % w/ w <1.5 T ota l org a nic c a rbon distrib utio n o f fe e dsto c k ma y % w/ w <0.1 Ma g ne sium sa lts a ffe c t the c a lc ina tio n ra te . T hus, the pa rtic le size o f RG % w/ w <0.06 Sodium sa lts sho uld b e in line with the % w/ w <0.05 Pota ssium sa lts c o nve ntio na l fe e dsto c k use d b y the ma nufa c ture r. % w/ w <0.02 Soluble c hloride - 6-9 pH 4th I NT E RNAT I ONAL CONF E RE NCE o n Susta ina b le So lid Wa ste Ma na g e me nt, CYPRUS 2016 10 o f 15
I ntro duc tio n - Me tho do lo g y – Re sults a nd disc ussion - Co nc lusio n RESULTS F RE E MOIST URE GtoG Pa ra me te r Unit proje c t T he a ve ra g e fre e mo isture g uide line s o b ta ine d fo r GY RG is 6.91% w/ w. T he va lue wa s a b o ve the mm 15.00 Ma ximum size thre sho ld (10 % w/ w) in 3 o f the % w/ w <10 F re e moisture 13 GY RG sa mple s. % w/ w >80 Purity No te : % w/ w <1.5 T ota l org a nic c a rbon Re inc o rpo ra tio n o f RG with % w/ w <0.1 Ma g ne sium sa lts hig h fre e mo isture c o nte nt ma y invo lve a dditio na l e ne rg y use % w/ w <0.06 Sodium sa lts a nd c o st. As a c o nse q ue nc e , % w/ w <0.05 Pota ssium sa lts the E uro g ypsum Re c yc ling Wo rking Gro up re c o mme nds % w/ w <0.02 Soluble c hloride to limit fre e mo isture o f RG to - 6-9 pH 5%. 4th I NT E RNAT I ONAL CONF E RE NCE o n Susta ina b le So lid Wa ste Ma na g e me nt, CYPRUS 2016 11 o f 15
I ntro duc tio n - Me tho do lo g y – Re sults a nd disc ussion - Co nc lusio n RESULTS PURIT Y GtoG Pa ra me te r Unit proje c t T he a ve ra g e purity o f GY BAU g uide line s wa s 4.37 % w/ w hig he r c o mpa re d to GY RG . I n a ll c a se s mm 15.00 Ma ximum size >80% w/ w. % w/ w <10 F re e moisture No te : % w/ w >80 Purity Purity a ffe c ts the e ne rg y use o f % w/ w <1.5 T ota l org a nic c a rbon the c a lc ina tio n sta g e during % w/ w <0.1 Ma g ne sium sa lts the ma nufa c turing pro c e ss, due to the c o nte nt o f % w/ w <0.06 Sodium sa lts c he mic a lly b o und wa te r. T he % w/ w <0.05 Pota ssium sa lts E uro g ypsum Re c yc ling Wo rking Gro up re c o mme nds a va lue o f % w/ w <0.02 Soluble c hloride a t le a st 85% . - 6-9 pH 4th I NT E RNAT I ONAL CONF E RE NCE o n Susta ina b le So lid Wa ste Ma na g e me nt, CYPRUS 2016 12 o f 15
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