Robertson's Ready Mix Pours Concrete for Local Hotel

Written by Alyssa Burley.

Robertson's Ready Mix, a family owned and operated ready mix company serving Southern California, was seen pouring concrete at a Mission Valley hotel on Friday, February 13, 2015.

Did you know?

  • Thomas Edison was the first to contract and live in a precast concrete home.
  • Over 70% of the world’s population lives in a structure that contains concrete.
  • Concrete gets stronger as it gets older!

Source: ConcreteHelper

Robertson's Ready Mix Concrete Mixer delivering concrete to a Mission Valley hotel. Photo by Crystal Howard.

Robertson's Ready Mix Concrete Mixer delivering concrete to a Mission Valley hotel. Photo by Crystal Howard.

Local Construction Aggregates Build New YMCA Facility

Written by Alyssa Burley.

Robertson's, a San Diego construction aggregate producer, was seen pouring concrete for the new Copley-Price Family YMCA in the Mid City community of San Diego.  The facility is scheduled to open in January 2015.

Photos by Crystal Howard

Facility Specs:

  • Aquatics Center: One indoor and one outdoor lap and competition pool with splash pad
  • 7,500 square foot fitness center with cross-training and free weights
  • Three group exercise studios with one dedicated to studio cycling
  • Teen Center
  • Community Meeting Room
  • Soccer Arena
  • Gymnasium with a full size basketball court
  • Family Picnic Area
  • Demonstration Kitchen
  • Social Lobby
  • Computer Lab
  • School-age child care center
  • Preschool
  • On-site, enclosed parking garage with 300 parking spaced and room dedicated for bicycles.
  • The new Y will be a "Silver LEED" certified facility.

Facility information courtesy of Copley-Price Family YMCA.

Send us your pictures of construction aggregates being used around San Diego County.

Ancient Building Material Is Still Used In Downtown San Diego Construction

Written by Alyssa Burley.

In November, Hanson Aggregates trucks were lined up to pour concrete in Downtown San Diego.  Concrete is an ancient building material that is still used in many construction projects around the world.

Did you know:

  • The ancient Romans were the first civilization to use concrete as a building material.  Built by the Romans between 118 - 128 AD, the Pantheon's dome is the largest unreinforced concrete dome in the world.  And, we still use concrete in nearly all building projects today!
  • Concrete is used to build highways, bridges, retaining walls, sidewalks, roads, high-rise building, foundations, and even kitchen counter tops!
  • Concrete is the number one building material in the world.  It is used twice as much as all other building materials combined. (ECOSMART)
Photo by Crystal Howard.

Photo by Crystal Howard.

Pantheon.  Photo courtesy of

Pantheon. Photo courtesy of

More fun facts about concrete may be found at and

Send us your pictures of construction aggregates being used around San Diego County.

ACI - Qualcomm AY Building Tour

Written by Alyssa Burley.

On October 14, 2014, Project Cornerstone representatives Crystal Howard and Alyssa Burley attended ACI San Diego's Architectural Concrete presentation and tour of the Qualcomm AY Building.  The event was held at the Qualcomm Pacific Center Campus in SanDiego.

The presentation and tour was designed to highlight the innovative ways concrete can be used in building design.  The Qualcomm AY building uses concrete as both an architectural and building material.

Crystal and Alyssa met some of the people who worked on the project and spoke with others about the Project Cornerstone's educational programs and the golf tournament fundraiser.

357,000 sq. ft., 6-Story Lab/Office Building with a Basement


  • As-Cast architectural concrete structure utilizing Type 1 Colton Cement
  • 12"-15" flat slab with moment frame beams and round columns
  • 2,000 rammed aggregate piers
  • 27,000 CY concrete
  • 5.2 million lbs. reinforcing steel


  • Centralized plant with v.a.v / hybrid natural ventilation system at offices and fan coil unit system at labs
  • 1,400 tons cooling
    • 3 each - 100,000 CFM AHUs
    • Privatized 12kV loop
    • 7 MVA


  • High performance building facades utilizing aluminum window walls, architectural metal and metal sunshades
  • 2,400 unitized window panels
  • 527 operable windows
  • 56 miles of aluminum extrusions


  • Flexible office and lab spaces with collaboration and social zones
  • 160,000 sq. ft. 6" raised access floor
  • Open ceilings with clouds
  • 1.3M LF of low voltage cabling

Building specifications courtesy of DPR Construction.