Materials Reviewer

, INSTRUC110N: Encircle your

answer,

lfyou change, mark(x) lind encircle another answer.

1. Mininrum size for stone masonry

a. 200 10m b. 300 mm 150 rnm d. 400mm

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2. Mort:;li'Ratio for mane masonry

a

(]> c. d.

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1:3 1:2 1:1 1:4

3. Minimum si7..e for class "A" fltorwB \\

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300mm b. 200 mm c. 400 mm d. 500 mm

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A- f3 Co

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4. Concrete in the area represented by th~ coreS wi!! be considered if the average strength of the oqreS is equal to:

. a Alleall175% ofarlCl flO single core in less Ulan 85% of; the specified SU'Oll8th, fc'. (E)At least 85% of and no singje Cllre i.sless than 75% of, the sp.ecified strength, fc', c, At I east equal or exceed oftha speCified Btre!lgth fc' and no nlllgle flIrengt/J test 1()8~ than 200/0 of the specified strength, ie'. d. At least equal of exceed of the specified strength fe' and no single strength test less than 100/0 oftha specified strength, fc'. : ;

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S. Job mix tolerance for Bituminous material a ±7% b. ±2% ±O>t% d. ±4%

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6. Required percent air voids for asphalt mix 'i

i,

a

2 to (f) 3 to c .. 4 to d . 4 to

3 5 8 7

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7. The proportion ofbiluminOl)s material, on the basis ofto(al Water cont~nt b. Cement and water c. C cmen! and fine aggregates d All of the above 79. Required !l0' of representative core taken from ea.ch member of area in-pla.ce that is considered deficient.

@)3 b. 2 c. 1

d 4 80. "Ibickness de!erminatioll of concrete cores a

4 measurements 9 measurements c. 6 mea~!lfementB d. 8 rne.asurements

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shall by done at

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81. No. Ofset of c?Hfrete c-)'Iinder s41r\~takelj forevery 75 cu.m. of concrete. ?all-set

.¥

2-8~t

('3 UJ~\'

r .Arty of", and 2. d 3-BC.t

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\Vhatwill you recommend?

a

reject, rccoring . c. Remove and r~pl~e d. All of the above·

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83. Most effective facto~ forstf!.'nsth of concrete. faJWater-cernent rillio Water, cement and fine aggregate c. Cernert plus water d. Any of the abpve

Y.

. &4. Asphaltic materials use for treating an exill(inf; bituminous materi!l1 or cement concrete surface with piturninous materials.

a

Prime coat @Tackcoat c. Seal coat d. Any of the above

85. Number of hours of concrete cylinder sample to be submitted toe the laboratory before testing

. ra:J 24 hra '--?

48 hrs c. 12 hrs d. 72Prs

86. Number ofhoUfsofImmersioniCornpression test that the sample place in water.

!a')4W

Y. 6 hrs c.

ct.

7 hrs 8 hrs

87. Required weight ofsarrtple for tebiing for coars? aggregates 4se for concreting

a

40 kg b. 50kg 70 kg d. 80 kg

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gS. Required weight of sample testing for fine aggregates •use for 90ncreting

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70 kg SO kg c. 30 kg d. 40 kg

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,,\ 2000

CU .. IT!.

LV 1500 cu.m. c. 1000 cu.m. d. 500 CU.rrt.

)10. The cWsign thickness for peep is 200 mrn. Tile liver;tge thiclmesfl detennination was taken 1.

and th a

Soil stabilization Use of admixture c, Both l! und Q . None of the above

100. Ail an experience materials engineer, compacting 6" (l5cm) thick layersofsoil will require, how many passes. /,\ 10 (020 passes 8 to 10 passes c. [5 to 20 passes· d. [5 (0 30 passes

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Prepared: Bonifacio R. Lora, CE, PE, ME DPWH, Region 10 . '

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DATE: ,hme 17,;WOO PLACE: MSU. HT Ilig:mCUy

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All ortll" qllillki'"

b, Titre,.

quari~rB

i c, Two adjacent quarte.rs

i @ Opposito qi;:irlets

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, 5, Uljuicllimit ofummitabh, malei'ials exc(led

C0 80% 'b, 60% 75 % d. 55 ?_ '\,

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":: " , , \ ),1,11 ", luyer uged ina 1l,:ovcTlle,l'ltlNll!C\iHo r"iMI\,r0e' atJd pl'O! ctth,'8ubWHde ormlbbs;.;c '"

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I DaMmcnhliil I ["Elllbmiklli(lnt J'oullil;dion g,

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'Cmoimkilient ' D~se .

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aJ Not mbr~thtirJ 25

b Notfuhfe'tfutri 20 N()!ihb~~ than 22 Notinore thail 30

ity ind~~:ofselected Dorrowfor topping (. . ;,' t; i ! .! -.' \ ,- l.'; , :I,r5::!"I:>I._~-i.:

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N o'U~~fg lliifri '12 Not more.. than 8' . .' Not more thaii 6 Nofmord !fmil i 0 {~ -

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detllJiiy tosts sball be carried out for each _"___ ~ of

TIlis leads

,Li quidIiriu t,'\ . PlaStiClinlj( , Shlihk~e Iillji t Consolidation iest

dcte~ninirigthe liquid [iI;ti~ Ii. special standard-cup device is used, All dimellsio1l8 deviccafii'fi%c0,iihd tlie jilitit\E; is accomplished by rurilirig the crunk ill tlie I1Jie of --i--.,-:

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,llo/iofhoHfS in :lo~kh~ ilie specliilerio/'soi! for CDR determination.

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O)llber'p'l('lce,'fi~ldmalcrjal llllsilleei,'criil ,,"uoily

""''''A'''' thom d(jflr;borU!ory~qui Pin~i\t. " :' .}. .i :~ii::i; '. ~;':~;:'

idclllily WhCtiHll' (h~ soil sarnp!.(' it; p'iastic " ' '

By rui: dryirlg "

By heating , " ;' .',.', . , '. , ', Slnuple,ofmoistsoii mblded and rolledili(() li1itll1u,'eaLis without breaking or cilliribliiIg , ' d, By iJoukiilg illto the watei'. '.

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pan

6'7.60

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i:; ;\,:;} ;?;'{:::i.(i:!-!:>'

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ig dtiCfelli:ecl liblsblfe ~d1l6rtt is IrtiIliihiied'

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1.S rmn per Ininllk I. 3 (J mill p(,I"'mil'llle C!V l. 27 n-',lll per rnilli,k, \/ it

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, required l1[ea (. alll!?)1 number i,\ii II (equil'e ,

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LC8ilef' iiepth ofh';1>;0 and inwJ.lJ,ce

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Gh'llidd','plh Oi'"::1",, andnlui,;lc:e c. Lesse'J' perm(':n.b.iJ.ity d. i'('~ilHer rapldaril.).'

Size of grains

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