Concrete Engineering and Research
About Twining Concrete Insight
Twining Concrete Insight (Twining Consulting DBA Twining Concrete Insight) provides material engineering, laboratory testing, building technology consulting, structures and pavements evaluation, forensic, petrographic, and analytical services.
Our specialty is the concrete built environment. For more than seventy years generations of Twining’s professionals have been contributing to its development in California, nationwide, and internationally. Our pool of clients includes manufacturers and suppliers of cement, supplementary cementitious materials, aggregates, chemical admixtures, fiber reinforcement, preblended products, and ready-mixed and precast concrete. We service concrete contractors working in all segments of the built environment. Twining works for private developers, government agencies, independent testing laboratories and consultants, insurance companies, law firms, and technology startups.
We build long-term relationships with our clients which are based on trust and our commitment to providing them with accurate data and holistic engineering solutions contributing to successful delivery of projects.
Concrete Engineering and Research
Concrete Engineering and Research
About Twining Concrete Insight
Twining Concrete Insight (Twining Consulting DBA Twining Concrete Insight) provides material engineering, laboratory testing, building technology consulting, structures and pavements evaluation, forensic, petrographic, and analytical services.
Our specialty is the concrete built environment. For more than seventy years generations of Twining’s professionals have been contributing to its development in California, nationwide, and internationally. Our pool of clients includes manufacturers and suppliers of cement, supplementary cementitious materials, aggregates, chemical admixtures, fiber reinforcement, preblended products, and ready-mixed and precast concrete. We service concrete contractors working in all segments of the built environment. Twining works for private developers, government agencies, independent testing laboratories and consultants, insurance companies, law firms, and technology startups.
We build long-term relationships with our clients which are based on trust and our commitment to providing them with accurate data and holistic engineering solutions contributing to successful delivery of projects.
About Twining Concrete Insight
Twining Concrete Insight (Twining Consulting DBA Twining Concrete Insight) provides material engineering, laboratory testing, building technology consulting, structures and pavements evaluation, forensic, petrographic, and analytical services.
Our specialty is the concrete built environment. For more than seventy years generations of Twining’s professionals have been contributing to its development in California, nationwide, and internationally. Our pool of clients includes manufacturers and suppliers of cement, supplementary cementitious materials, aggregates, chemical admixtures, fiber reinforcement, preblended products, and ready-mixed and precast concrete. We service concrete contractors working in all segments of the built environment. Twining works for private developers, government agencies, independent testing laboratories and consultants, insurance companies, law firms, and technology startups.
We build long-term relationships with our clients which are based on trust and our commitment to providing them with accurate data and holistic engineering solutions contributing to successful delivery of projects.
About Twining Concrete Insight
Twining Concrete Insight (Twining Consulting DBA Twining Concrete Insight) provides material engineering, laboratory testing, building technology consulting, structures and pavements evaluation, forensic, petrographic, and analytical services.
Our specialty is the concrete built environment. For more than seventy years generations of Twining’s professionals have been contributing to its development in California, nationwide, and internationally. Our pool of clients includes manufacturers and suppliers of cement, supplementary cementitious materials, aggregates, chemical admixtures, fiber reinforcement, preblended products, and ready-mixed and precast concrete. We service concrete contractors working in all segments of the built environment. Twining works for private developers, government agencies, independent testing laboratories and consultants, insurance companies, law firms, and technology startups.
We build long-term relationships with our clients which are based on trust and our commitment to providing them with accurate data and holistic engineering solutions contributing to successful delivery of projects.
We Use The Following Techniques
About Twining Concrete Insight
Twining Concrete Insight (Twining Consulting DBA Twining Concrete Insight) provides material engineering, laboratory testing, building technology consulting, structures and pavements evaluation, forensic, petrographic, and analytical services.
Our specialty is the concrete built environment. For more than seventy years generations of Twining’s professionals have been contributing to its development in California, nationwide, and internationally. Our pool of clients includes manufacturers and suppliers of cement, supplementary cementitious materials, aggregates, chemical admixtures, fiber reinforcement, preblended products, and ready-mixed and precast concrete. We service concrete contractors working in all segments of the built environment. Twining works for private developers, government agencies, independent testing laboratories and consultants, insurance companies, law firms, and technology startups.
We build long-term relationships with our clients which are based on trust and our commitment to providing them with accurate data and holistic engineering solutions contributing to successful delivery of projects.
About Twining Concrete Insight
Twining Concrete Insight (Twining Consulting DBA Twining Concrete Insight) provides material engineering, laboratory testing, building technology consulting, structures and pavements evaluation, forensic, petrographic, and analytical services.
Our specialty is the concrete built environment. For more than seventy years generations of Twining’s professionals have been contributing to its development in California, nationwide, and internationally. Our pool of clients includes manufacturers and suppliers of cement, supplementary cementitious materials, aggregates, chemical admixtures, fiber reinforcement, preblended products, and ready-mixed and precast concrete. We service concrete contractors working in all segments of the built environment. Twining works for private developers, government agencies, independent testing laboratories and consultants, insurance companies, law firms, and technology startups.
We build long-term relationships with our clients which are based on trust and our commitment to providing them with accurate data and holistic engineering solutions contributing to successful delivery of projects.
Petrographic examination of concrete and cementitious materials (ASTM C856) including visual examination of specimens in as-received condition, stereomicroscopy of polished cross-sectional surfaces, thin section analysis using fluorescence microscopy, and phenolphthalein staining to characterize the composition and condition as well as causes of deterioration or distress in submitted samples,
Scanning electron microscopy with energy dispersive x-ray spectrometry (SEM/EDS) analysis (ASTM C1723) for elemental composition of concrete, cementitious materials, aggregate and secondary deposits,
Chloride analysis to measure acid-soluble chloride content (ASTM C1152) or water-soluble chloride content (ASTM C1218) within a material to evaluate for corrosion potential and external chloride exposure,
Hardened air void system analysis (ASTM C457) to evaluate for total air content and air void system parameters for freeze-thaw durability,
Volumetric proportioning testing (ASTM C457) to quantitatively assess proportioning of concrete in comparison with mix design or specifications,
Bulk resistivity testing (ASTM C1876) to characterize the capillary porosity of concrete mixture(s),
Petrographic examination of aggregates (ASTM C295) to identify potentially deleterious materials with potential for alkali-aggregate reactivity, staining, and/or pop-outs,
and more!
Performance Engineered Concrete Mixtures
Our expertise encompasses a multitude of concrete mixtures that we engineer and qualify for the specified performance and constructability. Along with “conventional” normal and lightweight concrete with a wide range of strength and permeability classes we develop and qualify specialty mixture types, among them:
- High-performance and ultra-high-performance
- Rapid hardening and ultra-rapid hardening
- Non-shrink (K-cement and shrinkage-compensating additives)
- Cellular low density(25-65 pcf)
- Heavyweight (180-300pcf)
- Pervious
- Roller-compacted
- Underwater
- Self-consolidating
- Architectural (discoloration resistant; simulating natural environments; sculptural), and others.
Our laboratories are equipped to evaluate properties of fresh concrete affecting constructability, such for example as the formability of low-slump pavement mixtures intended for slip-forming, segregation resistance of self-consolidating concrete, bleeding, setting time, and others. We qualify concrete for compressive, flexural, direct, and splitting tensile strengths, Poisson ratio and modulus of elasticity, creep, shrinkage, coefficient of thermal expansion, cracking resistance, rapid chloride permeability, coefficient of chloride diffusion (ASTM& EN), bulk resistivity, adiabatic temperature rise, and other physical properties. Our laboratories are equipped for simulating the production, consolidation, and curing of cast-in-place and precast concrete. We use various types of mixers (drum mixers, pan mixers, high-speed shear mixers),external and internal vircators, steam curing chambers, temperature-control and temperature-matching curing chambers, foam generators for cellular concrete, and other specialized equipment.
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Why Choose Us?
Our laboratory technicians are highly experienced with testing requirements of different pavement preservation materials. Twining laboratories consistently help public works agencies and contractors to test materials such as:
Slurry Seal
Microsurfacing
REAS
Chip Seal
The typical tests that we perform for such materials are:
Wet Track Abrasion
Asphalt content
Emulsion content
Aggregate gradation
Sand Equivalent
Consistency test (field test)
Our Balcony Inspection Services
Twining offers a range of services tailored to meet the unique needs of property owners and managers. Our services include:
E3s Housing Balcony Inspections (CP1481)
We specialize in conducting thorough inspections in compliance with CP1481 requirements, ensuring the safety of residents and compliance with local regulations.
Structural Integrity Assessments
Our team assesses the structural integrity of your balconies, identifying potential issues related to materials, connections, and load-bearing capacity.
Safety Audits
We conduct safety audits to ensure that your balconies meet the highest safety standards, including railings, guardrails, and fire safety measures.
Exterior Elevated Elements (E3s) Housing Balcony Inspection (CP1481)
An Exterior Elevated Elements (E3s) Housing Balcony Inspection (CP1481) is a comprehensive inspection of the balcony structure, including the railings, decking, and supports. The inspection is performed to identify any potential hazards or defects that could compromise the safety of the balcony.
The CP1481 inspection is based on a set of standards developed by the Canadian Construction Association (CCA). The standards cover a wide range of topics, including:
- Design and construction requirements
- Materials and workmanship requirements
- Inspection and testing requirements
We are certified E3s inspector, and we have the experience and expertise to perform comprehensive Balcony Bill Inspections. Our team is well-versed in the local, state, and national building codes, including the requirements outlined in CP1481. We provide a thorough assessment of your balcony's structural integrity, materials, and overall safety, identify potential hazards, and recommend necessary repairs or improvements.