Earth Systems 1024 West Avenue M-4 I Palmdale, CA 93551 I Ph: 661.948.7538 I www.earthsystems.com

December 14, 2017

Recycled Aggregate Materials Company 3713 Alamo Street Simi Valley, California 93063

Attention: Mr. Dallas Jones

Subject: Laboratory Test Results

Caltrans Section 26 Class 2 Aggregate Base Recycled Aggregate Materials Company 8354 Nelson Way Escondido, California

PL-02667-04

This report presents the results of laboratory tests performed on one (1) sample of Ca ltrans Section 26 Class 2 Aggregate Base from the above referenced project. The sample was delivered to our laboratory on November 8, 2017. Per your request the following tests were performed;

A) Sieve Analysis (ASTM C-136) B) Sand Equivalent (Caltest 217) C) Durability Index (Ca ltest 229) D) R-Value (Caltest 301) E) Los Angeles Abrasion (ASTM C-131) F) Maximum Density - Optimum Moisture (ASTM D-1557)

The laboratory test results are attached. We trust this report meets your current needs. If you have any questions please contact us.

The Material Tested ~ met D did not meet the requirements of Caltrans Standard Specifications, 2015 edition Section 26-1.028 Class 2, % inch Maximum Aggregate Base.

Respectfully submitted,

Earth Systems Southern California

£0::-Project Engineer P. E.#82397 Distribution: e-mail: Dallas@ramco.us.com, manselmo@ramco.us.com; markh@ramco.us.com;

josh@ramco.us.com; april@ramco.us.com; dawn@ramco.us.com;

December 14, 2017 2

Summary of Laboratory Test Results Caltrans Standard Specifications

Section 26 Class 2 Aggregate Base Recycled Aggregate Materials Company - Escondido, California

Delivered on November 8, 2017

A) Sieve Analysis (Caltest 202)

Sieve Percent Size Passing

1" (25.0 mm) 100 3/4" (19.0 mm) 98 1/2" (12.5 mm) 83 3/8" (9.5 mm) 70 #4 (4.75 mm) 47 #8 (2.36 mm) 33 #16 (1.18 mm) 24 #30 (0.6 mm) 17 #50 (0.3 mm) 10 #100 (0.15 mm) 6 #200 (0.075 mm) 3.3

B) Sand Equivalent (Caltest 217)

Sand Equivalent = 73

C) Durability Index (Caltest 229)

Dt = 70 De= 74

D) Resistance/R-Value (Caltest 301)

R-Value = 84

E) Los Angeles Abrasion (ASTM C-131)

Revolutions

100 500

% Loss

10.6 32.6

Caltrans Section 26 Class II Aggregate Base

(3/4" Maximum) 100

90-100

35-60

10-30

2-9

25 Min.

35 Min. 35 Min.

78 Min.

EARTH SYSTEMS SOUTHERN CALIFORNIA

PL-02667-04

December 14, 2017 3

Summary of Laboratory Test Results Caltrans Standard Specifications

Section 26 Class 2 Aggregate Base Recycled Aggregate Materials Company - Escondido, California

Delivered on November 8, 2017

F) Maximum Density- Optimum Moisture (ASTM D-1557)

Sample Description

Class II Aggregate Base*

Maximum Density

120.5 PCF

Optimum Moisture

13.4 %

PL-02667-04

*Note: This product contains crushed recycled asphalt concrete. A bias is required for all nuclear density tests to adjust the tested dry density results to reflect actual in-place densities.

EARTH SYSTEMS SOUTHERN CALIFORNIA

130.0 -

129.0

128.0

127.0

126.0

- 125.0 ~ u 124.0 ll. ->4 123.0 -~ -00. z 122.0 i:-.:l ~ 121.0 >4 ~ ~ 120.0

119.0

118.0

117.0

116.0

115.0

_ ) i !

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I i ! Ii·- l- ti - ti r T 1- 1 1

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--+--+-1--1--1--+----.- ---+---,I _J _,I _ _,__,__.,__,

f " t 1- -I I I --+---+---__,:-+ ·- ~· __ , ! , J T ·-· /-~ i---~ ~: ~- +- t' I ~~ .• _1 - T

~ j__L ~ ~-l - ,. - --t---+ -+ L ~-l-1 -I i ~-~ -1 -+-! I ' I

-+-

--·- t-

T

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

MOISTURE CONTENT (%)

Maximum Density - Optimum Moisture Characteristics*

Sample Location : Sample Delivered on November 8, 2017 MAXIMUM DENSITY - OPTIMUM MOISTURE

Material: Caltrans Class 2 Aggregate Base

Maximum Density (pct): 120.5

Optimum Moisture: 13.4%

* Test Method: ASTM D-1557

RAMCO - Escondido

Escondido, California

~ Earth Systems ~ Southern California

12/1 4/2017 PL-02667-04

December 14, 2017 PL-02667-04

EXUDATION PRESSURE CHART

100

80 I

Q) ::J

60 ro > I 40 0::::

20

0 800 700 600 500 400 300 200 100

Exudation Pressure

EXPANSION PRESSURE CHART

2.00 .., -.... .., Q) - 1.50 -Q) ,,r

E .., .Q

.,,.. il 1.00 -ro ,,r - .., en ~

>, .., .0 :;:;- 0.50 rn LL .., (/) ..__., -Q) -c ~ 0.00

..,

-~ 0.00 0.50 1.00 1.50 2.00 ..c I-.... Q) Cover Thickness by Expansion Pressure (Ft) > 0

(.)

JOB NAME: RAMCO - Escondido SAMPLE I. D.: Sample Delivered on November 8, 2017 SOIL DESCRIPTION: Caltrans Class 2 Aggregate Base

SPECIMEN NUMBER A B c EXUDATION PRESSURE 757 376 260

RESISTANCE VALUE 87 85 83 EXPANSION DIAL(0.0001") 0 0 0

EXPANSION PRESSURE (PSF) 0.0 0.0 0.0 % MOISTURE AT TEST 8.9 9.3 9.8 DRY DENSITY AT TEST 116.9 119.1 113.8

R-VALUE@ 300 PSI EXUDATION I 84 R-VALUE by Expansion Pressure*:===1=0=0===

*Based on a Traffic Index of 5. 0 and a Gravel Factor of 1. 70

EARTH SYSTEMS SOUTHERN CALIFORNIA