Asphalt Compaction
A roller works a freshly laid asphalt mat out, back and out again, the layer squashing down toward the dashed target level with every pass.
CSS
Cmaterials
15 animationsBatching Plant Charge
Aggregate, sand and cement bins discharge into the weigh hopper one after the other and the batch scale steps up to the target charge.
CSSConcrete Strength Gain
Compressive strength is plotted against curing age on a log-time axis, the curve drawing out behind a sweeping age cursor until the readout lands on the specified twenty-eight day strength.
CSSCover Meter Scan
A cover meter is swept along a slab surface and the depth trace is drawn behind the head, peaking each time the probe passes over a buried reinforcing bar.
CSSCylinder Compression Test
A test cylinder is squeezed between platens until the shear crack cuts through it, the load column alongside climbing to the failure reading and holding at the peak.
CSSHeat Of Hydration
The temperature profile across a mass concrete pour swells from the surface datum as the core heats and decays again, the differential bar measuring the core-to-surface difference and a peak-hold rule keeping the highest reading.
CSSLap Splice Bond
Bar force runs in along one deformed bar, hands across the lap through the bond ties and continues out along the continuing bar.
CSSSection Stress Block
Moment is applied to a rolled I-section: the section plane rotates about the neutral axis and the triangular bending stress block opens out from it, compression above and tension below.
CSSShear Link Spacing
Shear links along a beam elevation close up toward the supports where the shear diagram below is steepest, moving out of a uniform trial pitch into the detailed spacing.
CSSSieve Analysis
Aggregate is shaken through a stack of nested screens and the retained-mass bar beside each sieve fills in turn, coarsest first, down to the pan.
CSSSlump Test
A filled slump cone is lifted clear and the fresh concrete settles, the dimension bar against the datum growing to the measured slump before the mould is refilled for the next test.
CSSTensile Coupon
A steel tensile coupon is pulled between grips and the extensometer knife edges ride the specimen apart, the gauge-length bar below growing by exactly the extension.
CSSTimber Grading Scan
A scan line runs the length of a sawn board and the grade marker steps down a rung of the grade ladder each time it crosses a knot.
CSSTimber Moisture Meter
Resistance pins read a drying timber board and the meter needle falls across the scale to the kiln-dry target, the swept arc closing back behind it.
CSSWater-Cement Ratio
Water and cement trade share across one abutting proportion rail while the split tick rides the interface and the strength bar below moves the opposite way.
CSS