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10 EVALUATION — Cracks <br /> Block cracks <br /> Block cracking is interconnected cracks <br /> forming large blocks. Cracks usually inter- <br /> sect at nearly right angles. Blocks may <br /> range from one foot to approximately <br /> 10' or more across. The closer spacing <br /> indicates more advanced aging caused by = a- <br /> shrinking and hardening of the asphalt <br /> over time. Repair with sealcoating during <br /> early stages to reduce weathering of the <br /> asphalt. Overlay or reconstruction required <br /> in the advanced stages. <br /> Large blocks, <br /> approximately <br /> 10'across. As <br /> ,V <br /> 5 <br /> Intermediate-size - <br /> block cracking, <br /> 1'-5'across with �­ir .� <br /> open cracks. � ''"•' �• <br /> .r. <br /> Fri :,®.�. � , _ � -,.: •, <br /> _ I <br /> • ! .. <br /> •,- <br /> .. .b fir• <br /> P� s <br /> Extensive block <br /> cracking in an F - <br /> irregular pattern. <br /> Severe block -, •. W� : <br /> cracking— 1'or �,r •. •° . <br /> smaller blocks. ®• any • . <br /> Tight cracks with • �•g••r? r <br /> no raveling. <br /> �.ti _ <br />