46.1 the integrity of the concrete can be determined through PDA tests, which was referred to earlier in my grounds herein; and 46.2 the presence of such bulging and necking is evidence of the Plaintiff’s poor workmanship, caused by the tremie pipe being lifted too quickly and above the concrete level during the process of pouring the concrete which is a base cleaning issue. [47] Based on what I have observed at the trial, both the Plaintiff and Defendant experts confirm that there is evidence of bulging and necking in the piles under review. [48] The terms ‘bulking’ and necking’ was explained by Ir Ang in Court as follows “Basically, bulging and necking is basically a defect to the bore pile which is we have to check whether, normally necking means that the bore pile comes down and then it necks in. This is definitely, totally unacceptable. Whereas bulging, we have to study whether the bore pile where it comes down and then it bulge out, when it bulge out, it gives a better friction. But the problem here is, we have to refer this to the BTA reading also, whether is there any issue with the concrete quality. So, as engineer, we cannot base on one particular thing. We have to, a few other things. So, when we talk about bulging and necking, basically it shouldn’t happen for this bore pile because we are using bentonite. The reason why we want to use bentonite is because we want to prevent this bulging and necking from happening. It’s a gel-like substance whereby it pushes out the bore pile circumference so that the soil doesn’t cave. So, during concreting time, they should be very, the pile should be very nice to come up. So, like I said, I believe personally, when they were concreting the bore pile that time with the tremie pipe, when they were lifting the bore pile, the concrete as it goes up, they might have overlift. So, what happens that the concrete, let’s say, the concrete is below here, the rest of the tremie concrete came down this way, this thing caved in. So, you get necking. And then, sometimes with necking, you get bulging. Because when you neck, this side become bulge. So, there’s two things to this.” [see the NOP at Enclosure 83 / p 79 / Line 31] Alleged Defective Design [49] After perusing the pleadings before me, I have found that the Plaintiff had failed to plead that there is any design deficiency in respect of the piles which caused the pile failure. [50] Consequently, I agree with counsel for the Defendant that this Court is not entitled to decide a suit on a matter that is not pleaded, and as such the issue of any design deficiency in respect of the piles will not be considered by me in coming to my decision in this matter herein before me. It is settled law that parties must be bound by the pleadings. [51] The trite principle was found in the Court of Appeal’s judgment in Aseambankers Malaysia Bhd & Ors v Shencourt Sdn Bhd & Anor [2014] 4 MLJ 619 where the said Appellate Court held “[67] …. It is trite that the parties are bound by their pleadings. The court is not entitled to decide a suit on a matter that is not pleaded. It is a fundamental rule of natural justice that the opposite party must be informed of any adverse issue so that the other party has the opportunity to challenge it and not be caught by surprise. It is also salutary to mention that when the trial court decides on an issue that is not pleaded, the judgment can be set aside. The authorities on these points are legion and they are easily available in the law journals. …” [52] Following from this, and with respect, any factual evidence and expert witness’ testimonies including the Plaintiff’s written submissions as well as oral clarifications on the issue of any design deficiency in respect of the piles during the hearing has to be disregarded by this Court. Idling Costs [53] On the issue of idling costs, this Court has observed and note the deletion of Clause 3.22 of the Special Condition in the LOA dated 19 27.4.2019 as seen in Bundle C/ page 17 where the parties had agreed to delete the clause pertaining the Plaintiff’s right to claim for idling. [54] Be that as it may, the Court has found that the Defendant had, vide its letter dated 24.5.2019, agreed to pay Plaintiff the idling cost of RM8,000.00 per day if the Defendant obstructs the Plaintiff’s works (24.5.2019 Letter”), as per page 83 Encl. 28. But that “..the idling costs on 23rd May 2019 and 24th May 2019 is not claimable. …”. [55] Thus, it is clear from the evidence before me that the Defendant would pay for such idling costs of RM8,000.00 per day if, and only if, the Defendant obstructs the Plaintiff’s works save for the period 23.5.2019 to 24.5.2019. [56] The Plaintiff has from its Suit before this Court sought to claim Idling Charges of RM182,000.00 which it submits is justified, as they have been partly agreed by the Defendant in its Payment Certificate No. 1 dated 3.1.2021, see Encl. 28, page 613. [57] Based on my assessment of the evidence at trial, the Defendant has not obstructed the Plaintiff’s works as there is no stop work order issued by the Defendant as alleged by the Plaintiff which contradicts the Plaintiff’s contention that via the Plaintiff’s letter dated 16.05.2019 as at Bundle D/page71, the Plaintiff had alleged that the Defendant had instructed the Plaintiff to stop the Bore Piling Works until technical problems are solved. [58] I therefore hold that there does not exist any alleged ‘stop work order’ and that there is no contractual provision under the Sub-Contract which provides the Plaintiff any entitlement to claim for idling charges. Defendant’s Counter Claim For Backcharge Rectification Cost for the Defective Bore Piles [59] I now turn to the Defendant’s Counter Claim for backcharge rectification cost for the defective bore piles. [60] The Defendant has alleged that it had appointed CR17 as a third party contractor to carry out rectification works towards the Defective Piles and that the rectification works were assessed by CRCC based on the approved drawings for the rectification works. [61] To surmise, the Defendant’s counter claim as per paragraph 71 of CRCC’s Amended Defence and Counterclaim for rectification cost is the sum of RM1,096,745.73 (“Rectification Cost”) consisting of [62] In the Revised Witness Statement of Zhang Guo Shan (“DW-2”), DW2 had explained the detailed breakdown of the Rectification Cost which was calculated based on the rates stated in the bills of quantities contained in the Letter of Award dated 11.05.2019 between CRCC and CR17. [63] I have examined each of the documents referred to by DW2 for the breakdown of the above figures therein being Bill No.1 General Items for the period ending 25.5.2020, the Costs of Remedial Works (other than BQ), the Interim Payment Claim (SCIC) For Workdone Section 7 Bill of Quantities, Bill No. 8 Viaducts, the Copy of the Breakdown of the replacement bored pile done by the party engaged by the Defendant as attached at Appendix B of DW2’s Revised Witness Statement and the respective Concrete Progress Records dated 5.8.2020, 14.8.2020, 18.8.2020, 19.8.2020, 28.8.2020, 9.9.2020,