Podcast
Questions and Answers
The salvage or new aggregate is ______ until at least 80 mass percent of all the materials other than stone or gravel passes a 4.75mm (No. 4) sieve.
The salvage or new aggregate is ______ until at least 80 mass percent of all the materials other than stone or gravel passes a 4.75mm (No. 4) sieve.
pulverized
Any material on a 50mm (2”) sieve and other ______ materials are removed.
Any material on a 50mm (2”) sieve and other ______ materials are removed.
unsuitable
Portland ______ of proper quantity is applied uniformly in a trench on top of the windrows or spreaded uniformly over the aggregates.
Portland ______ of proper quantity is applied uniformly in a trench on top of the windrows or spreaded uniformly over the aggregates.
cement
The plant is equipped with ______ devices that will introduce the cement, aggregate and water into the mixer in quantities specified.
The plant is equipped with ______ devices that will introduce the cement, aggregate and water into the mixer in quantities specified.
Not more than 60 minutes should ______ from the start of mixing to and compaction of the laid mixture.
Not more than 60 minutes should ______ from the start of mixing to and compaction of the laid mixture.
The mixture is compacted and finished in accordance with the procedures as enumerated for ______ stabilized road and mix base.
The mixture is compacted and finished in accordance with the procedures as enumerated for ______ stabilized road and mix base.
Grading and traffic wear can cause __________ of materials ranging from ½ to 1 inch of the thickness per year.
Grading and traffic wear can cause __________ of materials ranging from ½ to 1 inch of the thickness per year.
Compaction is effectively done by using __________ rollers.
Compaction is effectively done by using __________ rollers.
The DPWH classified the aggregate sub-base course as __________ which consists of furnishing, placing, and compacting aggregate sub-base course on a prepared sub-grade.
The DPWH classified the aggregate sub-base course as __________ which consists of furnishing, placing, and compacting aggregate sub-base course on a prepared sub-grade.
The fraction passing the 0.75mm (No.200) sieve should not be greater than __________ of the fraction passing the 0.425mm No. 40 sieve.
The fraction passing the 0.75mm (No.200) sieve should not be greater than __________ of the fraction passing the 0.425mm No. 40 sieve.
The fraction passing the 0.425mm (No. 40) sieve should have a liquid limit not greater than __________ as determined by AASHTO T-89.
The fraction passing the 0.425mm (No. 40) sieve should have a liquid limit not greater than __________ as determined by AASHTO T-89.
The fraction passing the 0.425mm (No. 40) sieve should have a Plastic Index not more than __________ as determined by AASHTO T-90.
The fraction passing the 0.425mm (No. 40) sieve should have a Plastic Index not more than __________ as determined by AASHTO T-90.
The coarse portion retained on a ______ sieve shall have a mass percent of wear not to exceed 50.
The coarse portion retained on a ______ sieve shall have a mass percent of wear not to exceed 50.
The CBR value should be obtained at a maximum dry density as determined by AASHTO T-______ Method D.
The CBR value should be obtained at a maximum dry density as determined by AASHTO T-______ Method D.
The fraction passing the ______ mm (No. 200) sieve shall have a mass percent of wear not to exceed 50.
The fraction passing the ______ mm (No. 200) sieve shall have a mass percent of wear not to exceed 50.
The materials passing the ______ sieve shall have a soaked CBR value of not less than 80%.
The materials passing the ______ sieve shall have a soaked CBR value of not less than 80%.
The portion passing the ______ mm (No. 40) sieve shall have a liquid limit not more than 25 and Plastic Index not more than 6.
The portion passing the ______ mm (No. 40) sieve shall have a liquid limit not more than 25 and Plastic Index not more than 6.
The coarse aggregate retained on ______ mm (No. 10) sieve shall have a mass percent of wear not more than 45 by L.A. abrasion tests.
The coarse aggregate retained on ______ mm (No. 10) sieve shall have a mass percent of wear not more than 45 by L.A. abrasion tests.
