1. ASTM D75/D75M—Standard Practice for Sampling Aggregates
Key exam domainIdentify weak areas and improve with focused review.
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2. ASTM C702/C702M—Standard Practice for Reducing Samples of Aggregate to Testing Size
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing3. ASTM D4318—Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing4. ASTM D7928—Standard Test Method for Particle-Size Distribution (Gradation) of Fine-Grained Soils Using the Sedimentation (Hydrometer) Analysis
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing5. ASTM D2216—Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing6. ASTM D1557—Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft³ (2,700 kN-m/m³))
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing7. ASTM D698—Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12,400 ft-lbf/ft³ (600 kN-m/m³))
Key exam domainIdentify weak areas and improve with focused review.
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The ACI-AGGREGATE-BASE exam spans 7 domains - ASTM D75/D75M—Standard Practice for Sampling Aggregates, ASTM C702/C702M—Standard Practice for Reducing Samples of Aggregate to Testing Size, ASTM D4318—Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils, ASTM D7928—Standard Test Method for Particle-Size Distribution (Gradation) of Fine-Grained Soils Using the Sedimentation (Hydrometer) Analysis, ASTM D2216—Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass, ASTM D1557—Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft³ (2,700 kN-m/m³)), and ASTM D698—Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12,400 ft-lbf/ft³ (600 kN-m/m³)). Every practice question maps to one of them, so you train on exactly what's tested.
No - and that matters. These are original practice questions written to mirror the style, difficulty, and domain coverage of the ACI-AGGREGATE-BASE exam blueprint. We never distribute actual exam content, so practicing here keeps you fully compliant with official exam policies.
No. ACI-AGGREGATE-BASE Exam Prep is an independent study resource for Aggregate Base Testing Technician-ASTM Methods (ACI-AGGREGATE-BASE). It is not affiliated with, sponsored by, or endorsed by the official certifying body or exam administrator.
Every paid plan unlocks the full bank of 1,000+ practice questions covering all 7 ACI-AGGREGATE-BASE domains - ASTM D75/D75M—Standard Practice for Sampling Aggregates, ASTM C702/C702M—Standard Practice for Reducing Samples of Aggregate to Testing Size, ASTM D4318—Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils, ASTM D7928—Standard Test Method for Particle-Size Distribution (Gradation) of Fine-Grained Soils Using the Sedimentation (Hydrometer) Analysis, ASTM D2216—Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass, ASTM D1557—Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft³ (2,700 kN-m/m³)), and ASTM D698—Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12,400 ft-lbf/ft³ (600 kN-m/m³)). You can practice the whole bank, filter by domain, or run a timed, domain-balanced exam simulation.
Yes - the bank is maintained against the current exam outline, and questions are revised when the exam changes.
No honest practice platform can guarantee a pass. What realistic practice does is show you - before exam day - exactly which domains are weak, and give you the repetitions to fix them. That's the difference between hoping you're ready and knowing where you stand.
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Trusted by ACI-AGGREGATE-BASE candidates
Real feedback from ACI-AGGREGATE-BASE candidates on Reddit.
"written exam was open book but dont let that fool you, i still didnt know half the D698 vs D1557 differences going in. practice questions on baseexam.com actually broke down the compaction effort numbers till it stuck. passed first try, barely studied the week before tho lol."
"honestly went into this thinking id just skim my notes from level 1 and be fine. wrong. the mistake review feature caught how bad i was mixing up liquid limit and plastic limit procedures every single time. redid those questions like five times before it clicked. passed both parts within a month of each other."
"took the performance exam twice cuz i rushed the D75 sampling steps the first time, examiner dinged me on splitting the sample right. studied gradation stuff more on this site before retest and got thru it fine. just slow down on the physical steps, thats the real trap"