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ge v

olum

e

2ct

1dF

���

��

Rum

pf e

quat

ion

Res

ults

Yiel

d lo

ci fo

r 50

μm g

lass

bea

ds p

owde

r, at

a

cons

olid

atio

n st

ress

of 1

300

Pa a

nd a

t diff

eren

t va

lues

of a

ir re

lativ

e hu

mid

ity.

Tens

ile s

tren

gth

as a

func

tion

of a

ir re

lativ

e hu

mid

ity.

Expe

rim

ents

:�

, 50

μm b

eads

;�

, 95

μm b

eads

.

Mod

el re

sults

: ��

��, 5

0 μm

bea

ds a

nd r

a=0.

5 μm

;�,

95

μm b

eads

and

ra=

0.5

μm;

�%%,

95 μ

m b

eads

and

ra=

0.95

μm

.

Effe

ct o

f tem

pera

ture

on

pow

der f

low

pr

oper

ties:

a n

ew c

ell

groo

ves

Effe

ct o

f tem

pera

ture

on

pow

der f

low

pr

oper

ties:

pre

limin

ary

resu

lts

��

FCC

pow

der, � 1

=100

0 Pa

-20

°C�

�FC

C po

wde

r, � 1

=100

0 Pa

-25

0°C

�FC

C po

wde

r, � 1

=100

0 Pa

-50

0°C

norm

al s

tres

s �

(Pa)

shear stress �(Pa)

�FC

C po

wde

r, � 1

=120

0 Pa

-20

°C�

�FC

C po

wde

r, � 1

=120

0 Pa

-25

0°C

��

FCC

pow

der, � 1

=120

0 Pa

-50

0°C

norm

al s

tres

s �

(Pa)

shear stress �(Pa)FCC

��

Fly

ashe

s, �

1=40

00 P

a -2

0°C

��

Fly

ashe

s, �

1=40

00 P

a -5

00°C

norm

al s

tres

s �

(Pa)

shear stress �(Pa)

norm

al s

tres

s �

(Pa)

shear stress �(Pa)

�Fl

y as

hes,

�1=

1400

0 Pa

-20

°C�

Fly

ashe

s, �

1=14

000

Pa -

500°

C

Fly

Ash

es

Sim

plifi

ed c

hara

cter

izat

ion

proc

edur

es

•U

niax

ial c

ompa

ctio

n te

ster

•D

irect

mea

sure

men

t of t

he

horiz

onta

l to

verti

cal s

tress

ra

tio

Bio

mas

s flo

wab

ility

: new

test

er

AD

BC

Bio

mas

s flo

wab

ility

: res

ults

maj

or p

rinci

pal s

tress

, Pa

030

060

090

012

0015

00

unconfined yield strength, Pa

0

200

400

600

ff c=1

ff c=2

ff c=4

ff c=10

hard

ened

very

cohe

sive

cohe

sive

free

flow

ing

easy

flow

ing

maj

or p

rinci

pal s

tress

, Pa

030

060

090

012

0015

00

unconfined yield strength, Pa

0

200

400

600

ff c=1

ff c=2

ff c=4

ff c=10

hard

ened

very

cohe

sive

cohe

sive

free

flow

ing

easy

flow

ing

fres

h sa

wdu

stdr

y sa

wdu

st

The

rese

arch

team

Prof

esso

rs

•G

iorg

ioD

onsì

•G

iova

nna

Ferr

ari

•M

assi

mo

Pol

etto

•D

iego

Bar

letta

Post

doc

fello

ws

•Pa

ola

Rus

so(c

ompl

eted

)

•Ig

ino

Tom

aset

ta

•An

naD

’Arc

o(c

ompl

eted

)

•An

toni

oC

anna

vacc

iuol

o(c

ompl

eted

)

•G

iova

nna

Land

i(co

mpl

eted

)

PhD

stu

dent

s

Tech

nica

l sta

ff

•Lu

igiE

spos

ito

•R

affa

ele

Tadd

eo