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AMERIUUJ NAIIONAI. ANSI/ASTM D 698 - 78 <br />STANDARD <br />Standard Test Methods for <br />MOISTURE-DENSITY RELATIONS OF SOILS AND SOIL- <br />AGGREGATE MIXTURES USING 5.5-Ib (2.49-kg) <br />RAMMER AND 12-in. (305-mm) DROP' <br />Standard is issued under the lased de signaiion D69tl. she number immediate ly lollowing ilia designation indicates <br />nr of original adopuan or. m the msc o! re vsion. ilia rear of lass re.ision A number m pare ni hexs indicat<s the <br />of lass reapproval <br />1. Scope <br />-. I.1 These laboratory compaction methods <br />(rover the determination of the relationship <br />between the moisture consent and dznsity of <br />tooils and toss-aggregate mixtures (Nate I ) <br />twhen compacted m a mold o(a gixen size with <br />'•a 5.5-Ib (2 49-kg) yammer dropped from x <br />%'lieight of 12 in. (305 mm) (Note ?). Four <br />{alternative procedures are prodded as (ol- <br />' lows: <br />I.I .I MedtoA A-A 4-in. (101.6-mm) <br />"mold; material passing a No. 3 (3 .7 ~-mm) <br />I sieve; <br />~~ 1.1.2 Medrod B-A ban. (U2 A-mm) <br />'mold; material passing a No. 3 (3 75-mm) <br />sieve; <br />1.1.3 Merhorl C-A 6-in (lit a-mm) <br />-mold; material pacing a 'r+-in. (14.U-mm) <br />sieve; and <br />1.14 Mrlhur( D-A 6-in. (I?3 a-nvn) <br />mold; material passing a 'r+-in. (IY.O-mm) <br />sieve, corrected h}' re place mcm far orate n:d <br />retained tin a '!+-in. sizsu. <br />Nore I-Soils and soil-aggregate mizsures should <br />h regarded as natural rxcurting floc- or <oars<- <br />grained soils or wmpositcs or mutures of natural <br />toils, or mixtures of natural and processed sods or <br />aggregates such ru silt, gravel, or crushed rock. <br />No7e 2-These laboraton compucl ion acts <br />methods when used on sods and soil-ag¢rcum<s <br />which are nos free-draining swill, in moll cuu•~. <br />establish a trashdefined optimum moisture comem <br />and maximum denviy (sec Section 7) Howescr. <br />Ior tree-draining soils and loll-aggregatr maxi ores. <br />these methods will not. in many cases. produce e <br />well-defined moisture-dentin rrlanonship and Ihz <br />maximum dentate ohminzd \s ill eene raise t+< I<ss <br />Than that ohsamcd by s ihr:nun mcihud• <br />I ' The method w be used should be mdr <br />cared in the specifications for the material <br />being tested. 1( no method is specified, the <br />prosisions of Section 5 shall govern. <br />2. Applicable Documents <br />2.1 ASTM Standards: <br />C 127 Test for Specific Gravity and Ab- <br />sorption of Coarse Aggregate' <br />D 853 Test for Speci (sc Gravity of Soilsn <br />D 2168 Calibration of Mechanical Labora- <br />ton~ Soil Compactors' <br />D 2316 Laboruto n~ Determination of Mois- <br />turc Content of Soil' <br />D2387 Classification of Soils for Engineer- <br />inc Purpusc sa <br />D 24SS Recommended Practice for Soils <br />(Visual-Is1anuul Procedure)' <br />E I I Spen(ication (or ~6ire-Cloth Sieves <br />tar Testing Purpose.' <br />3. Apparatus <br />I Alolrls -'I he inolds shall be cyhndncal <br />in shape. made of rigid metal and be within <br />she capacity and dimensions mdicuted in 3.1 .I <br />or 3.1 .?. The molds may be the ~~split" type. <br />consisting either of two halt-round sections. <br />or a section of pipe split along one element. <br />' Thes< m<i hide arc under the lunsdics inn of ASTbt <br />Cammmcc D-IF nn $ml and Rock for Engine<n~g Pur- <br />p,~Yt. <br />Cu rtem eduinn approved Apnl '7. 1978. Published <br />July 1978. Ongmalf. publsshed as D 69g - a1 T. Law <br />prn~ious <diuon D 69P - 70. <br />' Annual BooA of A57 t1 Standards. Pans la and I5. <br />'Annual BooA of AST.Lf Standards. Pan 19. <br />'.a nnuol BonA oJAS7N Srunda.ds. Pans Ia. IS, and <br />al <br /> <br />t <br />